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 Freescale Semiconductor Technical Data
MC145026/D Rev. 4, 1/2005
MC145026, MC145027 MC145028
16 16 1 1
MC145026, MC145027, MC145028
Encoder and Decoder Pairs CMOS
P Suffix Plastic DIP Case 648
D Suffix SOG Package Case751B
16 1
DW Suffix SOG Package Case 751G
1
Introduction
Ordering Information Device MC145026P MC145026D MC145027P MC145027DW MC145028P MC145028DW Package Plastic DIP SOG Package Plastic DIP SOG Package Plastic DIP SOG Package
These devices are designed to be used as encoder/decoder pairs in remote control applications. The MC145026 encodes nine lines of information and serially sends this information upon receipt of a transmit enable (TE) signal. The nine lines may be encoded with trinary data (low, high, or open) or binary data (low or high). The words are transmitted twice per encoding sequence to increase security. The MC145027 decoder receives the serial stream and interprets five of the trinary digits as an address code. Thus, 243 addresses are possible. If binary data is used at the encoder, 32 addresses are possible. The remaining serial information is interpreted as four bits of binary data. The valid transmission (VT) output goes high on the MC145027 when two conditions are met. First, two addresses must be consecutively received (in one encoding sequence) which both match the local address. Second, the 4 bits of data must match the last valid data received. The active VT indicates that the information at the Data output pins has been updated.
Contents
1 2 3 4 5 6 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Electrical Specifications . . . . . . . . . . . . . . . . 4 Operating Characteristics . . . . . . . . . . . . . . . 8 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . 9 MC145027 and MC145028 Timing . . . . . . . . 16 Package Dimensions . . . . . . . . . . . . . . . . . . 18
Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. (c) Freescale Semiconductor, Inc., 2005. All rights reserved.
Introduction
The MC145028 decoder treats all nine trinary digits as an address which allows 19,683 codes. If binary data is encoded, 512 codes are possible. The VT output goes high on the MC145028 when two addresses are consecutively received (in one encoding sequence) which both match the local address. * Operating Temperature Range: - 40 to + 85C * Very-Low Standby Current for the Encoder: 300 nA Maximum @ 25C * Interfaces with RF, Ultrasonic, or Infrared Modulators and Demodulators * RC Oscillator, No Crystal Required * High External Component Tolerance; Can Use 5% Components * Internal Power-On Reset Forces All Decoder Outputs Low * Operating Voltage Range: MC145026 = 2.5 to 18 V MC145027, MC145028 = 4.5 to 18 V
MC145026 ENCODER
A1 A2 A3 A4 A5 A6/D6 A7/D7 VSS VDD Dout TE RTC CTC RS A9/D9 A8/D8 A1 A2 A3 A4 A5 R1 C1 VSS
MC145027 DECODERS
VDD D6 D7 D8 D9 VT R2/C2 Din A1 A2 A3 A4 A5 R1 C1 VSS
MC145028 DECODERS
VDD A6 A7 A8 A9 VT R2/C2 Din
Figure 1. Pin Assignments
MC145026, MC145027, MC145028 Technical Data, Rev. 4 2 Freescale Semiconductor
Introduction
RS
RTC CTC 13 /4 DIVIDER DATA SELECT AND BUFFER 15 DOUT
TE
11 14
12
3-PIN OSCILLATOR AND ENABLE
RING COUNTER AND 1-OF-9 DECODER 987654321 A1 A2 A3 A4 A5 A6/D6 A7/D7 A8/D8 A9/D9 1 2 3 4 5 6 7 9 10 VDD = PIN 16 VSS = PIN 8 TRINARY DETECTOR
Figure 2. MC145026 Encoder Block Diagram
11
VT
4-BIT SHIFT REGISTER
15 14 13 12
CONTROL LOGIC
D6 D7 D8 D9
SEQUENCER CIRCUIT 5 A1 A2 A3 A4 A5 1 2 3 4 5 C1 7 R1 6 10 4 3 2 1
DATA EXTRACTOR C2
LATCH 9 Din
VDD = PIN 16 VSS = PIN 8
R2
Figure 3. MC145027 Decoder Block Diagram
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 3
Electrical Specifications
CONTROL LOGIC
11
VT
SEQUENCER CIRCUIT 9 A1 A2 A3 A4 A5 A6 A7 A8 A9 1 2 3 4 5 15 14 13 12 C1 7 DATA EXTRACTOR R1 6 10 C2 R2 9 Din 9-BIT SHIFT REGISTER 8 7 6 5 4 3 2 1
VDD = PIN 16 VSS = PIN 8
Figure 4. MC145028 Decoder Block Diagram
2
Electrical Specifications
Table 1. Maximum Ratings* (Voltages Referenced to VSS)
Ratings Symbol VDD Vin Vout Iin Iout PD Tstg TL Value - 0.5 to + 18 - 0.5 to VDD + 0.5 - 0.5 to VDD + 0.5 10 10 500 - 65 to + 150 260 Unit V V V mA mA mW C C
DC Supply Voltage DC Input Voltage DC Output Voltage DC Input Current, per Pin DC Output Current, per Pin Power Dissipation, per Package Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the limits in the Electrical Characteristics tables or Pin Descriptions section.
This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, Vin and Vout should be constrained to the range VSS (Vin or Vout) VDD.
MC145026, MC145027, MC145028 Technical Data, Rev. 4 4 Freescale Semiconductor
Electrical Specifications
Table 2. Electrical Characteristics - MC1450261, MC145027, and MC145028 (Voltage Referenced to VSS)
Guaranteed Limit Symbol Characteristic VDD V - 40C Min VOL Low-Level Output Voltage (Vin = VDD or 0) 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 5.0 10 15 5.0 10 15 5.0 10 15 15 4.95 9.95 14.95 3.5 7.0 11 - 2.5 - 0.52 - 1.3 - 3.6 0.52 1.3 3.6 Max 0.05 0.05 0.05 1.5 3.0 4.0 0.3 25C Min 4.95 9.95 14.95 3.5 7.0 11 - 2.1 - 0.44 - 1.1 - 3.0 0.44 1.1 3.0 3.0 16 35 Max 0.05 0.05 0.05 1.5 3.0 4.0 11 60 120 0.3 85C Min 4.95 9.95 14.95 3.5 7.0 11 - 1.7 - 0.36 - 0.9 - 2.4 0.36 0.9 2.4 Max 0.05 0.05 0.05 1.5 3.0 4.0 V (Vout = 0.5 or 4.5 V) (Vout = 1.0 or 9.0 V) (Vout = 1.5 or 13.5 V) IOH High-Level Output Current (Vout = 2.5 V) (Vout = 4.6 V) (Vout = 9.5 V) (Vout = 13.5 V) IOL Low-Level Output Current (Vout = 0.4 V) (Vout = 0.5 V) (Vout = 1.5 V) Iin Input Current - TE (MC145026, Pull-Up Device) Input Current RS (MC145026), Din (MC145027, MC145028) Input Current A1 - A5, A6/D6 - A9/D9 (MC145026), A1 - A5 (MC145027), A1 - A9 (MC145028) Input Capacitance (Vin = 0) Quiescent Current - MC145026 1.0 A mA mA V Unit
VOH
High-Level Output Voltage
(Vin = 0 or VDD)
V
VIL
Low-Level Input Voltage (Vout = 4.5 or 0.5 V) (Vout = 9.0 or 1.0 V) (Vout = 13.5 or 1.5 V)
V
VIH
High-Level Input Voltage
Iin Iin
A A
5.0 10 15 5.0 10 15 5.0 10 15
-
-
-
110 500 1000 7.5 0.1 0.2 0.3 50 100 150
-
pF A
Cin IDD
IDD
Quiescent Current - MC145027, MC145028
A
1
Also see next Electrical Characteristics table for 2.5 V specifications.
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 5
Electrical Specifications
Table 2. Electrical Characteristics - MC1450261, MC145027, and MC145028 (continued) (Voltage Referenced to VSS)
Guaranteed Limit Symbol Characteristic VDD V - 40C Min Idd Dynamic Supply Current - MC145026 (fc = 20 kHz) Dynamic Supply Current - MC145027, MC145028 (fc = 20 kHz)
5.0 10 15 5.0 10 15 -
25C Min
-
85C Min
-
Unit
Max
-
Max
200 400 600 400 800 1200
Max
A
Idd
A
1
Also see next Electrical Characteristics table for 2.5 V specifications.
Table 3. Electrical Characteristics - MC145026 (Voltage Referenced to VSS)
Guaranteed Limit Symbol Characteristic VDD V - 40C Min VOL VOH VIL VIH IOH IOL Iin Iin IDD Idd Low-Level Output Voltage High-Level Output Voltage (Vin = 0 V or VDD) (Vin = 0 V or VDD) 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.45 2.2 0.28 0.22 Max 0.05 0.3 25C Min 2.45 2.2 0.25 0.2 0.09 Max 0.05 0.3 1.8 25 0.05 40 85C Min 2.45 2.2 0.2 0.16 Max 0.05 0.3 V V V V mA mA A A A A Unit
Low-Level Input Voltage (Vout = 0.5 V or 2.0 V) High-Level Input Voltage (Vout = 0.5 V or 2.0 V) High-Level Output Current Low-Level Output Current (Vout = 1.25 V) (Vout = 0.4 V)
Input Current (TE - Pull-Up Device) Input Current (A1-A5, A6/D6-A9/D9) Quiescent Current Dynamic Supply Current (fc = 20 kHz)
MC145026, MC145027, MC145028 Technical Data, Rev. 4 6 Freescale Semiconductor
Electrical Specifications
Table 4. Switching Characteristics - MC1450261, MC145027, and MC145028 (CL = 50 pF, TA = 25C)
Symbol tTLH, tTHL Characteristic Output Transition Time Figure No. 5, 9 Guaranteed Limit VDD 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 Unit Min 0.001 0.001 0.001 1.0 1.0 1.0 65 30 20 Max 200 100 80 15 15 15 15 5.0 4.0 2.0 5.0 10 240 410 450 ns
tr
Din Rise Time - Decoders
6
s
tf
Din Fall Time - Decoders
6
s
fosc
Encoder Clock Frequency
7
MHz
f
Decoder Frequency - Referenced to Encoder Clock
13
kHz
tw
TE Pulse Width - Encoders
8
ns
1
Also see next Electrical Characteristics table for 2.5 V specifications.
Table 5. Switching Characteristics - MC145026 (CL = 50 pF, TA = 25C)
Symbol tTLH, tTHL fosc tw Characteristic Output Transition Time Encoder Clock Frequency TE Pulse Width Figure No. 5, 9 7 8 Guaranteed Limit VDD 2.5 2.5 2.5 Unit Min 1.0 1.5 Max 450 250 ns kHz s
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 7
Operating Characteristics
ANY OUTPUT 90% 10% tTLH tTHL
tf Din 90% 10%
tf
VDD VSS
Figure 5. Output Transition Time
Figure 6. Din Rise and Fall Time
t/fOSC
TE
VDD 50% VSS tW
RTC
50%
Figure 7. Encoder Clock Frequency
Figure 8. TE Pulse Width
TEST POINT OUTPUT DEVICE UNDER TEST
CL*
* Includes all probe and fixture capacitance.
Figure 9. Test Circuit
3
3.1
Operating Characteristics
MC145026
The encoder serially transmits trinary data as defined by the state of the A1 - A5 and A6/D6 - A9/D9 input pins. These pins may be in either of three states (low, high, or open) allowing 19,683 possible codes. The transmit sequence is initiated by a low level on the TE input pin. Upon power-up, the MC145026 can continuously transmit as long as TE remains low (also, the device can transmit two-word sequences by pulsing TE low). However, no MC145026 application should be designed to rely upon the first data word transmitted immediately after power-up because this word may be invalid. Between the two data words, no signal is sent for three data periods (see Figure 11). Each transmitted trinary digit is encoded into pulses (see Figure 12). A logic 0 (low) is encoded as two consecutive short pulses, a logic 1 (high) as two consecutive long pulses, and an open (high impedance) as a long pulse followed by a short pulse. The input state is determined by using a weak "output" device to try to force each input high then low. If only a high state results from the two tests, the input is assumed to be hardwired to VDD. If only a low state is obtained, the input is assumed to be hardwired to VSS. If both a high and a low can be forced at an input, an open is assumed and is encoded as such. The "high" and
MC145026, MC145027, MC145028 Technical Data, Rev. 4 8 Freescale Semiconductor
Pin Descriptions
"low" levels are 70% and 30% of the supply voltage as shown in the Electrical Characteristics table. The weak "output" device sinks/sources up to 110 A at a 5 V supply level, 500 A at 10 V, and 1 mA at 15 V. The TE input has an internal pull-up device so that a simple switch may be used to force the input low. While TE is high, the encoder is completely disabled, the oscillator is inhibited, and the current drain is reduced to quiescent current. When TE is brought low, the oscillator is started and the transmit sequence begins. The inputs are then sequentially selected, and determinations are made as to the input logic states. This information is serially transmitted via the Dout pin.
3.2
MC145027
This decoder receives the serial data from the encoder and outputs the data, if it is valid. The transmitted data, consisting of two identical words, is examined bit by bit during reception. The first five trinary digits are assumed to be the address. If the received address matches the local address, the next four (data) bits are internally stored, but are not transferred to the output data latch. As the second encoded word is received, the address must again match. If a match occurs, the new data bits are checked against the previously stored data bits. If the two nibbles of data (four bits each) match, the data is transferred to the output data latch by VT and remains until new data replaces it. At the same time, the VT output pin is brought high and remains high until an error is received or until no input signal is received for four data periods (see Figure 11). Although the address information may be encoded in trinary, the data information must be either a 1 or 0. A trinary (open) data line is decoded as a logic 1.
3.3
MC145028
This decoder operates in the same manner as the MC145027 except that nine address lines are used and no data output is available. The VT output is used to indicate that a valid address has been received. For transmission security, two identical transmitted words must be consecutively received before a VT output signal is issued. The MC145028 allows 19,683 addresses when trinary levels are used. 512 addresses are possible when binary levels are used.
4
4.1
Pin Descriptions
MC145026 Encoder
A1 - A5, A6/D6 - A9/D9 Address, Address/Data Inputs (Pins 1 - 7, 9, and 10) These address/data inputs are encoded and the data is sent serially from the encoder via the Dout pin. RS, CTC, RTC (Pins 11, 12, and 13) These pins are part of the oscillator section of the encoder (see Figure 10).
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 9
Pin Descriptions
If an external signal source is used instead of the internal oscillator, it should be connected to the RS input and the RTC and CTC pins should be left open. TE Transmit Enable (Pin 14) This active-low transmit enable input initiates transmission when forced low. An internal pull-up device keeps this input normally high. The pull-up current is specified in the Electrical Characteristics table. Dout Data Out (Pin 15) This is the output of the encoder that serially presents the encoded data word. VSS Negative Power Supply (Pin 8) The most-negative supply potential. This pin is usually ground. VDD Positive Power Supply (Pin 16) The most-positive power supply pin.
4.2
MC145027 and MC145028 Decoders
A1 - A5, A1 - A9 Address Inputs (Pins 1 - 5) - MC145027, Address Inputs (Pins 1 - 5, 15, 14, 13, 12) - MC145028 These are the local address inputs. The states of these pins must match the appropriate encoder inputs for the VT pin to go high. The local address may be encoded with trinary or binary data. D6 - D9 Data Outputs (Pins 15, 14, 13, 12) - MC145027 Only These outputs present the binary information that is on encoder inputs A6/D6 through A9/D9. Only binary data is acknowledged; a trinary open at the MC145026 encoder is decoded as a high level (logic 1). Din Data In (Pin 9) This pin is the serial data input to the decoder. The input voltage must be at CMOS logic levels. The signal source driving this pin must be dc coupled.
MC145026, MC145027, MC145028 Technical Data, Rev. 4 10 Freescale Semiconductor
Pin Descriptions
R1, C1 Resistor 1, Capacitor 1 (Pins 6, 7) As shown in Figure 3 and Figure 4, these pins accept a resistor and capacitor that are used to determine whether a narrow pulse or wide pulse has been received. The time constant R1 x C1 should be set to 1.72 encoder clock periods: R1 C1 = 3.95 RTC CTC R2/C2 Resistor 2/Capacitor 2 (Pin 10) As shown in Figure 3 and Figure 4, this pin accepts a resistor and capacitor that are used to detect both the end of a received word and the end of a transmission. The time constant R2 x C2 should be 33.5 encoder clock periods (four data periods per Figure 12): R2 C2 = 77 RTC CTC. This time constant is used to determine whether the Din pin has remained low for four data periods (end of transmission). A separate on-chip comparator looks at the voltage-equivalent two data periods (0.4 R2 C2) to detect the dead time between received words within a transmission. VT Valid Transmission Output (Pin 11) This valid transmission output goes high after the second word of an encoding sequence when the following conditions are satisfied: 1. the received addresses of both words match the local decoder address, and 2. the received data bits of both words match. VT remains high until either a mismatch is received or no input signal is received for four data periods. VSS Negative Power Supply (Pin 8) The most-negative supply potential. This pin is usually ground. VDD Positive Power Supply (Pin 16) The most-positive power supply pin.
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 11
Pin Descriptions
RS 11
CTC 12
RTC 13
INTERNAL ENABLE
This oscillator operates at a frequency determined by the external RC network; i.e., f 1 2.3 RTC CTC (Hz) The value for RS should be chosen to be 2 times RTC. This range ensures that current through RS is insignificant compared to current through RTC. The upper limit for RS must ensure that RS x 5 pF (input capacitance) is small compared to RTC x CTC. For frequencies outside the indicated range, the formula is less accurate. The minimum recommended oscillation frequency of this circuit is 1 kHz. Susceptibility to externally induced noise signals may occur for frequencies below 1 kHz and/or when resistors utilized are greater than 1 M.
for 1 kHz f 400 kHz where: CTC = CTC + Clayout + 12 pF RS 2 RTC RS 20 k RTC 10 k 400 pF < CTC < 15 F
Figure 10. Encoder Oscillator Information
ENCODER PWmin TE ENCODER OSCILLATOR (PIN 12) 2 WORD TRANSMISSION CONTINUOUS TRANSMISSION
114 116 118 120 122 178 180 182 184 16 18 20 22 24 26 28 30 80 82 84 86 88 90 2 4 6
1ST DIGIT Dout (PIN 15) HIGH OPEN 1ST WORD
9TH DIGIT
1ST DIGIT
9TH DIGIT
LOW 2ND WORD
ENCODING SEQUENCE
DECODER
1.1 (R2C2)
VT (PIN 11)
DATA OUTPUTS
Figure 11. Timing Diagram
MC145026, MC145027, MC145028 Technical Data, Rev. 4 12 Freescale Semiconductor
Pin Descriptions
ENCODER OSCILLATOR (PIN 12)
ENCODED "ONE" Dout (PIN 15) ENCODED "ZERO" ENCODED "OPEN"
DATA PERIOD
Figure 12. Encoder Data Waveforms
500
fmax (kHZ) (REF. TO ENCODER CLOCK)
400 VDD = 15 V VDD = 10 V
300
200 VDD = 5 V
100
10
20
30
40
50
Clayout (pF) ON PINS 1 - 5 (MC145027); PINS 1 - 5 AND 12 - 15 (MC145028)
Figure 13. fmax vs Clayout - Decoders Only
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 13
Pin Descriptions
NO
HAS THE TRANSMISSION BEGUN? YES
DOES THE 5-BIT ADDRESS MATCH THE ADDRESS PINS? YES STORE THE 4-BIT DATA
NO
DISABLE VT ON THE 1ST ADDRESS MISMATCH
DOES THIS DATA MATCH THE PREVIOUSLY STORED DATA? YES IS THIS AT LEAST THE 2ND CONSECUTIVE MATCH SINCE VT DISABLE? YES LATCH DATA ONTO OUTPUT PINS AND ACTIVATE VT
NO
DISABLE VT ON THE 1ST DATA MISMATCH
NO
HAVE 4-BIT TIMES PASSED? NO HAS A NEW TRANSMISSION BEGUN? YES
YES
DISABLE VT
NO
Figure 14. MC145027 Flowchart
MC145026, MC145027, MC145028 Technical Data, Rev. 4 14 Freescale Semiconductor
Pin Descriptions
NO
HAS THE TRANSMISSION BEGUN?
YES
DOES THE ADDRESS MATCH THE ADDRESS PINS? YES
NO
DISABLE VT ON THE 1ST ADDRESS MISMATCH AND IGNORE THE REST OF THIS WORD
IS THIS AT LEAST THE 2ND CONSECUTIVE MATCH SINCE VT DISABLE? YES
NO
ACTIVATE VT
HAVE 4-BIT TIMES PASSED?
YES
DISABLE VT
NO
NO
HAS A NEW TRANSMISSION BEGUN?
YES
Figure 15. MC145028 Flowchart
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 15
MC145027 and MC145028 Timing
5
MC145027 and MC145028 Timing
To verify the MC145027 or MC145028 timing, check the waveforms on C1 (Pin 7) and R2/C2 (Pin 10) as compared to the incoming data waveform on Din (Pin 9). The R-C decay seen on C1 discharges down to 1/3 VDD before being reset to VDD. This point of reset (labelled "DOS" in Figure 16) is the point in time where the decision is made whether the data seen on Din is a 1 or 0. DOS should not be too close to the Din data edges or intermittent operation may occur. The other timing to be checked on the MC145027 and MC145028 is on R2/C2 (see Figure 17). The R-C decay is continually reset to VDD as data is being transmitted. Only between words and after the end-of-transmission (EOT) does R2/C2 decay significantly from VDD. R2/C2 can be used to identify the internal end-of-word (EOW) timing edge which is generated when R2/C2 decays to 2/3 VDD. The internal EOT timing edge occurs when R2/C2 decays to 1/3 VDD. When the waveform is being observed, the R-C decay should go down between the 2/3 and 1/3 VDD levels, but not too close to either level before data transmission on Din resumes. Verification of the timing described above should ensure a good match between the MC145026 transmitter and the MC145027 and MC145028 receivers.
VDD Din 0V VDD C1 2/3 1/3 0V DOS DOS
Figure 16. R-C Decay on Pin 7 (C1)
EOW VDD R2/C2 2/3 1/3 0V EOT
Figure 17. R-C Decay on Pin 10 (R2/C2)
MC145026, MC145027, MC145028 Technical Data, Rev. 4 16 Freescale Semiconductor
MC145027 and MC145028 Timing
VDD A1
5 TRINARY ADDRESSES
TE
VDD 0.1 F 0.1 F
VDD VDD A1 16 15 Dout Din 9 6 R1 1 2 3 4 5 MC145027 15 14 13 12 11 8 A2 A3 A4 A5 D6 D7 D8 D9 VT
5 TRINARY ADDRESSES
A2 A3 A4 A5 D6
14 1 2 3 4 5 6 7 9 10
16
MC145026
13 12 11
RTC CTC
7 C1 10
4-BIT BINARY DATA
D7 D8 D9
8
RS
R2
C2
fosc =
1 2.3 RTCCTC
R1C1 = 3.95 RTCCTC R2C2 = 77 RTCCTC
CTC = CTC + Clayout + 12 pF 100 pF CTC 15 F RTC 10 k; RS 2 RTC R1 10 k C1 400 pF R2 100 k C2 700 pF
REPEAT OF ABOVE REPEAT OF ABOVE
Example R/C Values (All Resistors and Capacitors are 5%)
(CTC = CTC + 20 pF) fosc (kHz) 362 181 88.7 42.6 21.5 8.53 1.71 RTC 10 k 10 k 10 k 10 k 10 k 10 k 50 k CTC 120 pF 240 pF 490 pF 1020 pF 2020 pF 5100 pF 5100 pF RS 20 k 20 k 20 k 20 k 20 k 20 k 100 k R1 10 k 10 k 10 k 10 k 10 k 10 k 50 k C1 470 pF 910 pF 2000 pF 3900 pF 8200 pF 0.02 F 0.02 F R2 100 k 100 k 100 k 100 k 100 k 200 k 200 k C2 910 pF 1800 pF 3900 pF 7500 pF 0.015 F 0.02 F 0.1 F
Figure 18. Typical Application
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 17
Package Dimensions
6
Package Dimensions
-A16 9
B
1 8
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL.
DIM A B C D F G H J K L M S INCHES MILLIMETERS MIN MAX MIN MAX 0.740 0.770 18.80 19.55 0.250 0.270 6.35 6.85 0.145 0.175 3.69 4.44 0.015 0.021 0.39 0.53 0.040 0.70 1.02 1.77 0.100 BSC 2.54 BSC 0.050 BSC 1.27 BSC 0.008 0.015 0.21 0.38 0.110 0.130 2.80 3.30 0.295 0.305 7.50 7.74 0 10 0 10 0.020 0.040 0.51 1.01
F S
C
L
-TH G D
16 PL
SEATING PLANE
K
J
M
0.25 (0.010)
M
TA
M
Figure 19. Outline Dimensions for P SUFFIX PLASTIC DIP (DUAL IN-LINE PACKAGE) (Case Outline 648-08, Issue R)
0.25
PIN'S NUMBER 1 8X
M
B A
6.2 5.8
16
1.75 1.35
0.25 0.10
16X
0.49 0.35 0.25
6
M
TAB
PIN 1 INDEX
14X
1.27 4 A A 10.0 9.8
NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 3. DATUMS A AND B TO BE DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 4. THIS DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURRS. MOLD FLASH, PROTRUSION OR GATE BURRS SHALL NOT EXCEED 0.15mm PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 5. THIS DIMENSION DOES NOT INCLUDE INTER-LEAD FLASH OR PROTRUSIONS. INTER-LEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED 0.25mm PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 6. THIS DIMENSION DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD WIDTH TO EXCEED 0.62mm.
8
9
T 4.0 3.8 5 0.50 0.25 B
16X
SEATING PLANE
0.1 T
X45
0.25 0.19
1.25 0.40 SECTION A-A
7 0
Figure 20. Outline Dimensions for D SUFFIX SOG (SMALL OUTLINE GULL-WING) PACKAGE (Case Outline 751B-05, Issue K)
MC145026, MC145027, MC145028 Technical Data, Rev. 4 18 Freescale Semiconductor
Package Dimensions
0.25
PIN'S NUMBER 1 PIN 1 INDEX 8X
M
B A
10.55 10.05
16
2.65 2.35
0.25 0.10
16X
0.49 0.35 0.25
6
M
TAB
14X
A
8 9
10.45 4 10.15 A
1.27
7.6 7.4 5
T B
16X
SEATING PLANE
0.1 T
0.75 0.25
X45
0.32 0.23
NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 3. DATUMS A AND B TO BE DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 4. THIS DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURRS. MOLD FLASH, PROTRUSION OR GATE BURRS SHALL NOT EXCEED 0.15mm PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 5. THIS DIMENSION DOES NOT INCLUDE INTER-LEAD FLASH OR PROTRUSIONS. INTER-LEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED 0.25mm PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 6. THIS DIMENSION DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD WIDTH TO EXCEED 0.62mm.
1.0 0.4 SECTION A-A
7 0
Figure 21. Outline Dimensions for DW SUFFIX SOG (SMALL OUTLINE GULL-WING) PACKAGE (Case Outline 751G-04, Issue D)
MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 19
How to Reach Us:
Home Page: www.freescale.com E-mail: support@freescale.com USA/Europe or Locations Not Listed: Freescale Semiconductor Technical Information Center, CH370 1300 N. Alma School Road Chandler, Arizona 85224 +1-800-521-6274 or +1-480-768-2130 support@freescale.com Europe, Middle East, and Africa: Freescale Halbleiter Deutschland GmbH Technical Information Center Schatzbogen 7 81829 Muenchen, Germany +44 1296 380 456 (English) +46 8 52200080 (English) +49 89 92103 559 (German) +33 1 69 35 48 48 (French) support@freescale.com Japan: Freescale Semiconductor Japan Ltd. Headquarters ARCO Tower 15F 1-8-1, Shimo-Meguro, Meguro-ku, Tokyo 153-0064 Japan 0120 191014 or +81 3 5437 9125 support.japan@freescale.com Asia/Pacific: Freescale Semiconductor Hong Kong Ltd. Technical Information Center 2 Dai King Street Tai Po Industrial Estate Tai Po, N.T., Hong Kong +800 2666 8080 support.asia@freescale.com For Literature Requests Only: Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com
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MC145026/D Rev. 4 1/2005


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