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HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER
GENERAL DESCRIPTION
The HM91710A/B are Tone/Pulse switchable dialer which are fabricated in CMOS technology with wide operating voltage for both tone and pulse mode, and consumes very low memory retention current in ON-HOOK state. FEATURES * * * * * * * * Tone/pulse switchable dialer. One 32-digit last number redial memory. Pulse to tone (PT) is provided for PBX operation. Flash key is available. Minimum tone duration is 98ms or 83ms. Minimum intertone pause is 98ms or 83ms. Uses 3.579545 MHz crystal or ceramic resonator. Many options can be selected. Mode (10 PPS ; 20 PPS ; Tone) M/B ratio (40 : 60 ; 33 : 66) Pause time (3.6s) Flash function (RESET) PT pause time (3.6s) Flash time (600ms; 300ms; 100ms; or 80ms). Mixed dialing. Handfree function is provided for speaker phone application. Power on reset circuit is provided. Package in DIP18 or DIP16.
*
* * * *
PIN ASSIGNMENTS
HM91710A
HM91710B
EM91710A
C2 C3 C4 C1 OSCI OSCO XMUTE V SS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 R3 R2 R1 R4 TONE PO HKS V DD C2 C3 C4 C1 OSCI OSCO XMUTE VSS HFI
EM91710B
1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 R3 R2 R1 R4 TONE PO HKS VDD HFO
* This specification are subject to be changed without notice.
4.10.2002
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HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER
KEYBOARD ASSIGNMENT C1 1 4 7 * C2 2 5 8 0 C3 3 6 9 # C4 PT F P RD 1). PT 2). F 3). RD 4). P : In pulse mode, execute PT function. : Flash key. : Redial key. : Pause key.
R1 R2 R3 R4
FUNCTIONAL BLOCK DIAGRAM
XMUTE HFO V DD
PULSE GENERATOR
COL1
OUTPUT INTERFACE CKT.
COLUMN INTERFACE CKT.
PO
COL2 COL3 COL4
KERNEL CONTROL CKT.
DECODER & DATA LATCH LNB MEMORY
OSCI OSCO
OSC.
DIVIDER
ROW/COLUMN PROGRAMMING COUNTER
ROW1 ROW2 ROW3 ROW4
ROW INTERFACE CKT.
D/A CONVERTER INPUT INTERFACE CKT.
TONE
DIALING SIGNAL OPTION :
a]:Flash time: Row3
NR NR R R b).
HKS
Row4
NR R NR R
flash time(ms)
600 300 100 80
Row1 Row2
R R NR NR UR UR NR R NR R NR R
MODE TONE TONE PULSE PULSE PULSE PULSE
PULSE RATE
M/B
20PPS 20PPS 10PPS 10PPS
40:60 33:66 40:60 33:66
c]:Tone function: Col1
NR R
d]:Key type select inter-Tone Pause
98 ms 83 ms R */T
Col2
NR
Tone Duration
98 ms 83 ms
*or*/T select
*
Note: NR:no resistance. R : A resistance connect to Vss (820K typically) UR: A resistance connect to V DD DD
* This specification are subject to be changed without notice.
V SS
HFI
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HM91710A/B
TONE/PULES SWITCHABLE DIALER
PIN DESCRIPTION
Symbol C1 C2 C3 C4 Function Provides keyboard scanning . a. Keyboard scanning: HKS pin is LOW, the column group stays in "HIGH" stays and row group stays in "LOW" state. The key pad is compatible with the standard dual contact matrix keyboard (as Figure 1b.), the inexpensive single contact keyboard (as Figure 1a.), and electronic input (as Figure 1c.). When HKS is "low", a valid key entry is defined by related Row & Column connection or by electronic input; (as show in Figure 1c). Activation of two or more keys will result in no response, except for single key. To avoid keyboard bouncing error, this chip provides built-in debounce circuit. (The debounce time = 20 ms.)
Row Column
R1 R2 R3 R4
Figure 1a : Single contact form keyboard configuration Row Column Figure 1b : Dual contact form keyboard configuration V DD Row V SS V DD Column V SS Figure 1c : Electronic signal input keyboard configuration
OSCI OSCO
XMUTE
VSS VDD HKS
PO
Oscillator input & Oscillator output pins. The 3.579545 MHz oscillator is formed by a built-in inverter inside of this chip and by connecting a 3.579545 MHz crystal or a ceramic resonator across the OSCI and OSCO pins. (built-in feedback resistor and capacitor) When HKS is low, a valid key-in may turn on this oscillator and generates a 3.579545 MHz clock. Mute output pins. NMOS open drain output structure. The output is in low state during dialing sequence (both Pulse and Tone mode) otherwise this pin is "high-impedance". Long (continue) Mute. Negative power supply pin. Positive power supply pin. Hook switch input pin. When the handset is in ON-HOOK state, this pin must be pulled "high" in order to disable the dialing operation and decrease the power consumption. When in OFF-HOOK state, the HKS pin must be pulled "low" state for all function operation. Pulse output signal pin. NMOS open drain output structure. The output is "low" during pulse dialing and Flash operation, otherwise this output is "floating".
1.7.2002 3
* This specification are subject to be changed without notice.
HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER
Symbol TONE
Function Dual Tone Multi-frequency output pin. In TONE mode, when a entry of digit key (include * , # key), this pin will sent out a corresponding DTMF signal. The TONE pin provides minimum tone duration (tTD),& minimum intertone pause time to support rapid key-in. If key-in time is less than tTD , DTMF signal will last for tTD , otherwise the tone duration will last as long as the key is pressed. Handfree input control pin. Toggle input sturcture, falling edge trigger. It is used to enable and disable Handfree function. With waveshaped by a built-in Schmit trigger, the bounce of input can be eliminated by external R, C debounce circuit. A built-in pull up resistor is 200K typical. Handfree output pin. Inverter output structure (normally "low", active "high"). When a HFI pin is active, Handfree function will be enabled (HFO=1) or disabled (HFO=0). When the Handfree function is enable (HFO=1), after OFF-HOOK action, it can reset Handfree function and HFO pin return to "low" state.
HFI
HFO
FUNCTION DESCRIPTION
Keyboard Operation Symbol definitions: a). b). c). D1.....Dn d). DP1... DPn e). Dt1....Dtn f). tF g). tP h). tPT i). tFP j). tRP k). LNB : OFF-HOOK or enable Hand Free function. : ON-HOOK or disable Hand Free function. : Digit key; 1,2,3,4,5,6,7,8,9,0,*,# (C1.....Cn is same as D1.....Dn ). : Pulse digit ; 1,2,3,4,5,6,7,8,9,0, (CP1... CPn is same as DP1... DPn). : Tone digit ; 1,2,3,4,5,6,7,8,9,0,*, # (Ct1....Ctn is same as Dt1....Dtn). : Flash time. : Pause time. : Pulse to Tone wait time. : Pause time for flash. : Pause time for redial. : Last number redial buffer.
A. Normal Dialing 1. Digit Dialing Procedure : D1,D2 . . . . . ., Dn Dial out : Dt1, Dt2 . . . . . . ., Dtn in tone mode Dial out : Dp1, Dp2 . . . . . ., Dpn in pulse mode LNB : D1, D2 . . . . . . Dn
* This specification are subject to be changed without notice.
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HM91710A/B
TONE/PULES SWITCHABLE DIALER
2. Dialing with flash key Procedure : F,D1,D2 . . . . . ., Dn Dial out : tF, Dt1,Dt1 . . . . . . ., Dtn in tone mode Dial out : tF,Dp1,Dp1 . . . . . . ., Dpn in pulse mode LNB : D1, D2 . . . . . . . Dn 3. Dialing with PT key Procedure : D1, D2 . . . . . .,PT, . . . . . , Dn Dial out : Dp1, Dp2, . . . . tPT, . . . . . , Dtn in pulse mode LNB : D1, D2 . . . . . ,PT, . . . . Dn Note : If key in digit over maximum digit stored in LNB, then RD is inhibited even after on/off hook. B. Mixed dialing Procedure : D1, D2 . . . . . .,PT, D9,D10, . . . . . , Dn Dial out : Dp1, Dp2, . . . . tPT, Dt9,Dt10 . . . . . , Dtn LNB : D1, D2 . . . . . ,PT, D9,D10 . . . . Dn C. Redial LNB : D1, D2 . . . . . Dn Procedure : RD Dial out : Dt1, Dt2, . . . . Dtn in tone mode Dial out : Dp1, Dp2, . . . . Dpn in pulse mode Note : If key in digit over maximum digit stored in LNB, then RD is inhibited. D. Pause Function Procedure Dial out Dial out LNB : D1, D2, . . . .Dn, P, C1 . . . . .Cn : Dt1, Dt2, . . . . Dtn , tp, Ct1 . . . . . . . . . Ctn in tone mode : Dp1, Dp2, . . . . Dpn,tp, Cp1 . . . . . . . . .Cpn in pulse mode : D1, D2 . . . . . Dn, P, C1, C2 . . . . . . . . . .Cn
E. Flash Function 1. Reset Procedure Dial out Dial out LNB : D1, D2, . . . .Dn, F, C1 . . . . .Cn : Dt1, Dt2, . . . . Dtn , tF,Ct1 . . . . . . . . . Ctn in tone mode : Dp1, Dp2, . . . . Dpn, tF,Cp1 . . . . . . . . .Cpn in pulse mode : C1, C2 . . . . . Cn
Handfree function operation: A). To execute Handfree function : When HFO = "low", HFI pin is active , the Handfree function will be enabled (HFO="HIGH"). B). Reset Handfree function: a. OFF-HOOK action. b. When HFO="high", a HFI pin is active again , the Handfree function will be reset (HFO="LOW").
* This specification are subject to be changed without notice.
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HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER
Operating flow chart of Handfree
ON HKS INITIAL (0)
OFF HF HF ON
ON HKS (1) HF LINE
OFF
OFF HKS LINE (2)
HF
ON
HF
OFF HKS HF LINE (3)
STATE NO. (0) INITIAL STATE (1) ON HKS HF LINE (2) OFF HKS LINE (3) OFF HKS HF LINE
PO F F F F
XMUTE F F F F
HFO 0 1 0 1
* Note : ON : ON HKS OFF : OFF HKS HF : Pressed HF key
* F : Floating (Hi-impedance)
* This specification are subject to be changed without notice.
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HM91710A/B
TONE/PULES SWITCHABLE DIALER
TEST CIRCUIT
1
V+ A
Operation current
2
A
V+
Standby current
V KEY BOARD
DD
MODE
DP DP DT
VDD
HKS
HKS
V
SS
VSS
3
.
COUNTER AND AC METER TONE
Tone output voltage
V+
4
V+ SPECTRUM ANALYZER
TONE
Tone distortion
VDD
KEYBOARD ENTRY
10K
VDD KEYBOARD
10K
V
HKS
HKS
VSS
VSS
ENTRY
** A(V1)**2+(V2)**2+..+(Vn)**2 DIST.(dB)= 20log A(VL)**2+(VH)**2
a. V1....Vn are extraneous frequencies (ie, inter modulation and harmonic) components in the 500Hz to 3400Hz band. b. VL,VH are the individual frequency components of the DTMF signal c. Whether keyboard is pushed refer to the TONE mode time diagram 6
V +
5
V+
Pulse output sink current( open drain structure)
Keypad input
A
A V
VEXT
PO
VDD
Flash Key HKS
V DD ROW
R* V SS MODE C*
VSS
HKS
7
V DD Column A V SS
V+
R* C*
HKS
MODE
Isink=I/(1-Duty Cycle) I is the net DC current measured from ampere meter. R* , C* mean others column and row.
* This specification are subject to be changed without notice.
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HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER
ABSOLUTE MAXIMUM RATINGS (Ambient Temperature is 25oC, All voltage referenced to VSS. )
Parameter Power Supply Voltage Input Voltage Range Operating Temperature Storage Temperate Power Dissipation Sym. VDD VIN TOPR TSTO PD Ratings 6.0 -0.3 ~ VDD + 0.3 0 ~ 50 -55 ~125 500 Unit V V o C o C mw
ELECTRICAL CHARACTERISTICS (I) (Ambient Temperature is 25oC, All voltage referenced to VSS , VDD = 2.5V, . unless otherwise noted.)
(General purpose specification, fosc. = 3.579545 MHz)
Parameter Operating Voltage
Sym. VDD
Conditions Tone Pulse Memory retension Tone OFF-HOOK, Keypad entry Pulse ON-HOOK, No Keypad entry ON-HOOK, VDD = 1.0V
Min. 2.5 2.0 1.0 VSS 0.7VDD 0.2 4 200 0.5 0.5
Typ. 0.6 0.2 0.1 0.1 0.5 10 400 20 200 -
Max. 5.5 5.5 5.5 2 0.5 1 0.2 0.3VDD VDD 1 0.1 30 800 -
Unit V mA mA A A V V A mA A A A ms K mA mA
Operating Current Standby Current Memory retention current Control pin input voltage XMUTE pin leakage current sink current HKS pin input current Keyboard scanning pin drive current sink current Key-in debounce time HFI pin input resistor HFO pin drive current sink current
Iop Is Imr Vil Vih Imth Imtl Ihks Ikbd Ikbs tDB Rhfi
Vxmute = 2.5V Vxmute = 0.5V Vhks = 2.5V *Vn = 0V, *Vn = 2.5V, Vhfi=0
Ihdoh Vhfo = 2.0V Ihdol Vhfo = 0.5V
* Vn : Input voltage of any keyboard scanning pin (Row group, Column group).
* This specification are subject to be changed without notice.
1.7.2002
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HM91710A/B
TONE/PULES SWITCHABLE DIALER
ELECTRICAL CHARACTERISTICS (II) (Ambient Temperature is 25oC, All voltage referenced to VSS , VDD = 2.5V, unless otherwise noted.) .
(Pulse mode specification, fosc. = 3.579545 MHz)
Parameter Pulse output pin,SDO pin leakage current sink current Pulse rate Make/Break ratio Pre-digit Pause Inter-digit Pause
Sym. Ipoh Ipol fpr TM:TB tPDP tIDP
Conditions Vpo = 2.5V Vpo = 0.5V
Min. 0.5 -
Typ. 10 20 40:60 33:66 40 33 800 500
Max. 0.1 -
Unit uA mA pps pps % % ms ms ms ms
M/B ratio = 40:60 M/B ratio = 33:66 Pulse rate = 10pps Pulse rate = 20pps
ELECTRICAL CHARACTERISTICS (III) (Ambient Temperature is 25oC, All voltage referenced to VSS , VDD = 2.5V, unless otherwise noted.) .
(TONE mode specification, fosc. = 3.579545 MHz)
Parameter TONE output pin DC level sink current AC level Load resistor DTMF signal: pre-emphasis *distortion Minimum tone duration Minimum intertone pause
Sym. Vdc Itl Vdtmf Rl twist Dist. tTD tITP
Conditions VDD = 2.0V~5.5V Vdtmf = 0.5V Row group, RL = 10K Dist. -23dB VDD = 2.0~5.5V, Column-Row group RL = 10K Auto redial Auto redial
Min.
Typ.
Max. 0.7VDD 170 3 -23 -
Unit V mA mVrms K dB dB ms ms
0.5VDD 0.2 130 155 10 1
-
-
2 -30 98/83 98/83
* Distortion (dB) = 20 log { [(V12 + V22 + V32+...+Vn) 1/2 ] / [(VL2 + VH2) 1/2 ]}. VL , VH : Row group and Column group signal. V1 ,V2 ,...., Vn : Harmonic signal (BW = 300 Hz~ 3500 Hz).
* Actual frequency output (fosc. = 3.579545 MHz) KEYBOARD SCANNING PIN STANDARD (Hz) R1 R2 R3 R4 C1 C2 C3 f1 f2 f3 f4 f5 f6 f7 697 770 852 941 1209 1336 1477
OUTPUT (Hz) 699 766 848 948 1216 1332 1472
DEVIATION (%) +0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34
1.7.2002 9
* This specification are subject to be changed without notice.
HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER
HKS KEY IN
3 2 3
t XMUTE
DB
t
PO TONE
ITP
t
ITP
t
ITP
t
OSCO
TD
- - - - - - High impedance NORMAL DIALING
Figure 2: Tone Mode Timing Diagram
HKS KEY IN
3 2 3
t XMUTE
DB
t PDP
t IDP
t IDP
t IDP
tM
PO TONE
tB
tM
OSCO
- - - - - - High impedance NORMAL DIALING
Figure 3: Pulse Mode Timing Diagram
* This specification are subject to be changed without notice.
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HM91710A/B
TONE/PULES SWITCHABLE DIALER
HKS
3 2
P->T
KEY IN t DB
3
XMUTE
t
PDP t IDP
t
IDP
T
pt
PO TONE
t
ITP
OSCO
- - - - - - High impedance
Figure 4: Timing Waveform for mixed dialing Operation (by PT key entry)
HKS KEY IN
1 2 RD
t
DB
XMUTE
PO
t
ITP
t
t
ITP
ITP
TONE
t
OSCO
tITP
D
- - - - - - High impedance AUTO DIALING
Figure 5: Tone Mode Redial Timing Diagram
* This specification are subject to be changed without notice.
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HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER
HKS KEY IN XMUTE
3 2 RD
t
DB
XMUTE
t
PO
IDP
t
IDP
t
IDP
t
IDP
TONE OSCO
- - - - - - High impedance Figure 6: Pulse Mode Redial Timing Diagram
HKS KEY IN 3 t *PULSE MODE: XMUTE 2 P 3
DB
t
PO TONE OSCO
PDP t IDP
t IDP
T
P
tIDP
*TONE MODE: XMUTE PO TONE
t
DB
Tp t
ITP
t
ITP
t
ITP
OSCO
- - - - - - High impedance
Figure 7: Pause key operating timing
* This specification are subject to be changed without notice.
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12
HM91710A/B
TONE/PULES SWITCHABLE DIALER
HKS KEY IN F t DB
XMUTE PO
TF
TONE
OSCO
- - - - - - High impedance Figure 8: Flash key operation timimg
* This specification are subject to be changed without notice.
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13
APPLICATION CIRCUIT APPLICATION CIRCUIT APPLICATION CIRCUIT APPLICATION CIRCUIT APPLICATION CIRCUIT
* This specification are subject to be changed without notice.
1.7.2002 14
EM91710A HM91710A Application Example
Tip IN4004*4 22M 100K HOOK SW ON MPSA92 OFF IN4148 Ring 240K 330K ZNR 120V 2K2 Z.D. 5V1 2K7 IN4148
MPSA42
IN4148
100/16V
220K
100K .1 11 100 16V 9 470K C945
PO
VDD
1 100K
HKS
4 C1 1 2 C2 3 C3
10
TONE
12 2 WIRE TO 4 WIRE SPEECH NETWORK
TONE/PULSE SWITCHABLE DIALER
EM91710A HM91710A
XMUTE
7
C4
1 4 7 *
2 5 8 0
3 6 9 #
PT F P R/P
14 R1 15 16 R2 13 R3
R4 OSCI OSCO
VDD 5 6
TO HANDSEET
VSS
8
HM91710A/B HM91710A/B 91710A/B HM91710A/B HM91710A/B
TONE
20PPS 10PPS
3.579545MHz 820k*6
APPLICATION CIRCUIT APPLICATION CIRCUIT APPLICATION CIRCUIT
20PPS
TONE
10PPS
* This specification are subject to be changed without notice.
1.7.2002 15
EM91710B HM91710B Application Example
IN4004*4 Tip HOOK ON MPSA92 ZNR 120V 22M IN4148
100K
330K
0.1F 200K C945 + 100K 1 470K 100 16V + .1 5V1 .02 200 2K2 2K7 IN4148 C945
Ring
240K
12
3K3 47K C945 HKS
11 14 V TONE DD
13
PO
100K 47K HFO
HF KEY .1
9
HFI
5
3.579545 MHz
HM91710B EM91710B
OSCI OSCO
7 XMUTE 10 HFO
2 TO 4 WIRE SPEECH NETWORK & AUDIO AMPLIFIER
6
TONE/PULES SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER
TO HANDSET 16 R1 17 R2 18 R3 15 R4 4 C1 1 4 7 * 2 5 8 0 3 6 9 # P T F P RD
VSS
8
C4 C3 C2 3 2 1
HM91710A/B HM91710A/B HM91710A/B HM91710A/B HM91710A/B
820K*6
VDD
HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER
PACKAGE INFORMATION
Example : HM (1) 91710 P (2) (3) (1) ELAN MICRO. pefix (2) Type number (3) Package code: PPDIP KSkinny RSDIP 16 Lead Plastic Package
E1
1
D E
A
A1 L
C B eB e B1
16 PDIP
DIM A A1 B B1 C D E E1 e eB L MILIMETERS MIN. MAX. 5.334 0.381 0.356 0.558 1.150 1.778 0.204 0.381 19.05 20.07 7.620 8.255 6.096 7.112 2.286 2.794 10.92 2.921 4.064 INCHES MIN. MAX. .210 .015 .014 .022 .045 .070 .008 .015 .750 .790 .300 .325 .240 .280 .090 .110 .430 .115 .160
* This specification are subject to be changed without notice.
1.7.2002
16
HM91710A/B
TONE/PULES SWITCHABLE DIALER
18/20/28 Lead Plastic Package
E1
1
E
D
A
A1 L
C B eB e B1
18 PDIP
DIM A A1 B B1 C D E E1 e eB L MILIMETERS MIN. MAX. 5.334 0.381 0.356 0.558 1.150 1.778 0.204 0.381 22.35 23.37 7.620 8.255 6.096 7.112 2.286 2.794 10.92 2.921 4.064
20 PDIP
INCHES MILIMETERS INCHES MIN. MAX. DIM MIN. MAX. MIN. MAX. .210 A 5.334 .210 .015 A1 0.381 .015 .014 .022 B 0.356 0.558 .014 .022 .045 .070 B1 1.150 1.778 .045 .070 .008 .015 C 0.204 0.381 .008 .015 .880 .920 D 25.40 26.67 1.000 1.050 .300 .325 E 7.620 8.255 .300 .325 .240 .280 E1 6.096 7.112 .240 .280 .090 .110 e 2.286 2.794 .090 .110 .430 eB 10.92 .430 .115 .160 L 2.921 4.064 .115 .160 MILIMETERS DIM MIN. MAX. A 6.350 A1 0.381 B 0.356 0.558 B1 1.016 1.778 C 0.204 0.381 D 35.56 37.85 E 15.24 15.88 E1 13.21 14.73 e 2.286 2.794 eB 17.78 L 2.921 5.080
28 PDIP
INCHES MIN. MAX. .250 .015 .014 .022 .040 .070 .008 .015 1.400 1.490 .600 .625 .520 .580 .090 .110 .700 .115 .200
* This specification are subject to be changed without notice.
1.7.2002
17
HM91710A/B HM91710A/B
TONE/PULSE SWITCHABLE DIALER
22/24 Lead Plastic Package-Skinny
E1
1
E
D
A
A1 L
C B eB e B1
22 PDIP (skinny)
DIM A A1 B B1 C D E E1 e eB L MILIMETERS MIN. MAX. 4.752 0.381 0.356 0.558 1.27 1.778 0.204 3.556 25.90 26.67 7.620 8.255 6.223 6.604 2.286 2.794 8.382 10.16 2.921 4.064 INCHES MIN. MAX. .180 .015 .014 .022 .050 .070 .008 .014 1.02 1.05 .300 .325 .245 .260 .090 .110 .330 .400 .115 .160 DIM A A1 B B1 C D E E1 e eB L
24 PDIP (skinny)
MILIMETERS MIN. MAX. 4.572 0.381 0.356 0.558 1.27 1.778 0.204 0.381 31.24 32.26 7.620 8.255 6.223 6.731 2.286 2.794 8.636 9.652 2.921 4.064 INCHES MIN. MAX. .180 .015 .014 .022 .050 .070 .008 .015 1.23 1.270 .300 .325 .245 .265 .090 .110 .340 .380 .115 .160
* This specification are subject to be changed without notice.
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HM91710A/B
TONE/PULES SWITCHABLE DIALER
42 SDIP Package
E1
E
D
A A2 C A1 L
D1 B eB e B1
42 SDIP
DIM A A1 A2 B B1 C D E1 e eB D1 L MILIMETERS MIN. MAX. 5.08 0.381 3.937 4.191 0.356 0.559 0.914 1.116 0.204 0.304 36.70 37.34 13.84 14.10 1.727 1.829 15.24 17.78 0 0.127 2.921 3.429 INCHES MIN. MAX. 0.200 0.015 0.155 0.165 0.014 0.022 0.036 0.044 0.008 0.012 1.445 1.470 0.545 0.555 0.068 0.072 0.600 0.70 0 0.005 0.115 0.135
* This specification are subject to be changed without notice.
1.7.2002
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