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HD74LVCZ16245A
16-bit Bidirectional Transceivers with 3-state Outputs
REJ03D0375-0200 (Previous ADE-205-233 (Z)) Rev.2.00 Aug. 20.2004
Description
The HD74LVCZ16245A has sixteen two direction buffers, for the fittest at two direction bus lines with three state outputs in a 48 pin package. When (DIR) is high, data flows from the A inputs to the B outputs, and when (DIR) is low, data flows from the B inputs to the A outputs. A and B bus are separated by making enable input (G) high level. When VCC is between 0 and 1.5 V, the device is in the high impedance state during power up or power down. Low voltage and high-speed operation is suitable at battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.
Features
* * * * * * * * * VCC = 2.7 to 5.5 V All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V) All inputs / outputs VI/O (Max) = 5.5 V (@VCC = 0 V or output off state) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25C) Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25C) High impedance state during power up and power down Power off disables outputs, permitting live insertion High output current 24 mA (@VCC = 3.0 to 5.5 V) Ordering Information
Package Type TSSOP-48 pin Package Code TTP-48DBV Package Abbreviation T Taping Abbreviation (Quantity) EL (1,000 pcs/reel)
Part Name HD74LVCZ16245ATEL
Function Table
Inputs G L L H H: High level L: Low level X: Immaterial Z: High impedance DIR L H X Operation B data to A bus A data to B bus Z
Rev.2.00 Aug. 20, 2004 page 1 of 7
HD74LVCZ16245A
Pin Arrangement
1DIR 1 1B1 2 1B2 3 GND 4 1B3 5 1B4 6 VCC 7 1B5 8 1B6 9 GND 10 1B7 11 1B8 12 2B1 13 2B2 14 GND 15 2B3 16 2B4 17 VCC 18 2B5 19 2B6 20 GND 21 2B7 22 2B8 23 2DIR 24
48 1G 47 1A1 46 1A2 45 GND 44 1A3 43 1A4 42 VCC 41 1A5 40 1A6 39 GND 38 1A7 37 1A8 36 2A1 35 2A2 34 GND 33 2A3 32 2A4 31 VCC 30 2A5 29 2A6 28 GND 27 2A7 26 2A8 25 2G
(Top view)
Absolute Maximum Ratings
Item Supply voltage Input voltage Input / output voltage Input diode current Output diode current Output current VCC, GND current Storage temperature Symbol VCC VI VI/O IIK IOK IO ICC or IGND Tstg Ratings -0.5 to 7.0 -0.5 to 7.0 -0.5 to 7.0 -0.5 to VCC+0.5 -50 -50 50 100 -65 to 150 Unit V V V mA mA mA mA C Conditions
Output "Z" or VCC : OFF Output "H" or "L" VI < 0 VO < 0
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time.
Rev.2.00 Aug. 20, 2004 page 2 of 7
HD74LVCZ16245A
Recommended Operating Conditions
Item Supply voltage Input voltage Input / output voltage Output current Symbol VCC VI VI/O IOH IOL Input rise / fall time Operating temperature Note: 1. Duty cycle 50% tr, tf Ta Ratings 2.7 to 5.5 0 to 5.5 0 to 5.5 0 to VCC -12 -24 *1 12 24 *1 0 to 6 -40 to +85 Unit V V V mA mA ns / V C Conditions At operation Output "Z" or VCC : OFF Output "H" or "L" VCC = 2.7 V VCC = 3.0 to 5.5 V VCC = 2.7 V VCC = 3.0 to 5.5 V
Logic Diagram
1DIR
1 48 47 2
1G
1A1
1B1
To seven other channels
2DIR
24 25 36 13
2G
2A1
2B1
To seven other channels
Rev.2.00 Aug. 20, 2004 page 3 of 7
HD74LVCZ16245A
Electrical Characteristics
(Ta = -40 to 85C) Item Input voltage Symbol VIH VIL Output voltage VOH VCC (V) 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 5.5 2.7 3.0 3.0 4.5 2.7 to 5.5 2.7 3.0 4.5 0 to 5.5 2.7 to 5.5 0 to 1.5 1.5 to 0 0 2.7 to 3.6 2.7 to 5.5 2.7 to 3.6 3.3 3.3 Min 2.0 VCCx0.7 -- -- VCC-0.2 2.2 2.4 2.2 3.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- Typ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4.1 9.2 Max -- -- 0.8 VCCx0.3 -- -- -- -- -- 0.2 0.4 0.55 0.55 5 5 5 5 5 225 350 500 -- -- Unit V V V IOH = -100 A IOH = -12 mA IOH = -24 mA V IOL = 100 A IOL = 12 mA IOL = 24 mA VIN = 0 to 5.5 V VOUT = 0 to 5.5 V VOUT = 0.5 to 5.5 V, Output enable = don't care A A A pF pF VIN or VO = 5.5 V VIN = 3.6 to 5.5 V *1, IO = 0 VIN = VCC or GND VIN = one input at (VCC-0.6) V, other inputs at VCC or GND VIN = VCC or GND VOUT = VCC or GND Test Conditions
VOL
Input current Off state output current Output leak current Quiescent supply current
IIN IOZ IOZPU IOZPD IOFF ICC ICC
A A
Input capacitance Input / output capacitance Note:
CIN CI/O
1. This applies in the disabled state only.
Switching Characteristics
FROM (Input) A or B (Ta = -40 to 85C) TO (Output) B or A
Item Propagation delay time
Symbol tPLH tPHL tZH tZL tHZ tLZ
VCC (V) 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5
Min -- 1.0 -- -- 1.5 -- -- 1.5 -- -- -- --
Typ -- -- -- -- -- -- -- -- -- -- -- --
Max 5.2 4.6 4.0 7.3 6.3 5.2 7.5 6.9 6.0 -- 1.0 1.0
Unit ns
Output enable time
ns
G
A or B
Output disable time
ns
G
A or B
Between output pin skew *1 tOSLH tOSHL Note:
ns
1. This parameter is characterized but not tested. tOSLH = |tPLHm-tPLHn|, tOSHL = |tPHLm-tPHLn|
Rev.2.00 Aug. 20, 2004 page 4 of 7
HD74LVCZ16245A
Test Circuit
VCC VCC
G
See Function Table
Input Pulse generator Zout = 50
Output A1 B1 CL = 50 pF DIR S1 500 450 50 Scope S2 OPEN See under table GND
*1
Symbol t PLH / t PHL t ZH/ t HZ t ZL / t LZ Notes: 1. C L includes probe and jig capacitance. 2. A2-B2 to A8-B8 are identical to above load circuit. 3. S1 : Input-Output change switch.
S2
Vcc=2.7V, 3.30.3V Vcc=5.00.5V
OPEN GND 6V
OPEN GND 2xVCC
Rev.2.00 Aug. 20, 2004 page 5 of 7
HD74LVCZ16245A
* Waveforms - 1
tr 90 % Vref 10 % t PLH 90 % Vref
tf VIH 10 % t PHL GND
Input
VOH Output Vref Vref VOL
* Waveforms - 2
tf 90 % Vref 10 % t ZL 10 % t LZ tr 90 % Vref GND VOH1 Waveform - A Vref t ZH t HZ VOH - 0.3 V VOL + 0.3 V VOL VOH VOL1 TEST VIH Vref VOH1 VOL1
Vcc=2.7V, 3.30.3V Vcc=5.00.5V
VIH
Input G
Waveform - B
Vref
2.7 V 1.5 V 3V GND
VCC 50%VCC VCC GND
Notes: 1. Input waveform : PRR = 10 MHz, duty cycle 50%, t r = 2.5 ns, t f = 2.5 ns 2. Waveform - A shows input conditions such that the output is "L" level when enabled by the output control. 3. Waveform - B shows input conditions such that the output is "H" level when enabled by the output control.
Rev.2.00 Aug. 20, 2004 page 6 of 7
HD74LVCZ16245A
Power up / down Characteristics
4.0
Ta = 25C Output enable = "L"
3.0
VOUT (V)
2.0 Disable area Enable area
1.0
0 0 1.0 2.0 VCC (V) 3.0 4.0
Package Dimensions
As of January, 2002
12.5 12.7 Max 48 25
Unit: mm
1 *0.19 0.05
0.50
24
0.08 M 8.10 0.20 0 - 8
6.10
1.0
0.65 Max
*0.15 0.05
0.10
0.10 0.05
1.20 Max
0.50 0.1
*Pd plating
Package Code JEDEC JEITA Mass (reference value)
TTP-48DBV -- -- 0.20 g
Rev.2.00 Aug. 20, 2004 page 7 of 7
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