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Details, datasheet, quote on part number:74ABTH16952
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INTEGRATED CIRCUITS
74ABT16952 74ABTH16952 16-bit registered transceiver (3-State)
Product specification Supersedes data of 1995 Sep 28 IC23 Data Handbook 1998 Feb 25
Philips Semiconductors
Philips Semiconductors
Product specification
16-bit registered transceiver (3-State)
74ABT16952 74ABTH16952
FEATURES
· Two 8-bit registered transceivers · Live insertion/extraction permitted · Power-up 3-State · 74ABTH16952 incorporates bus-hold data inputs which eliminate
the need for external pull-up resistors to hold unused inputs
DESCRIPTION
The 74ABT16952 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74ABT16952 is a dual octal registered transceiver. Two 8-bit registers store data flowing in both directions between two bidirectional buses. Data applied to the inputs is entered and stored on the rising edge of the Clock (nCPXX) provided that the Clock Enable (nCEXX) is Low. The data is then present at the 3-State output buffers, but is only accessible when the Output Enable (nOEXX) is Low. Data flow from A inputs to B outputs is the same as for B inputs to A outputs. Two options are available, 74ABT16952 which does not have the bus-hold feature and 74ABTH16952 which incorporates the bus-hold feature.
· Power-up reset · Multiple VCC and GND pins minimize switching noise · Independent registers for A and B buses · Output capability: +64mA/32mA · Latch-up protection exceeds 500mA per Jedec Std 17 · ESD protection exceeds 2000V per MIL STD 883 Method 3015 · Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs and 200V per Machine Model
QUICK REFERENCE DATA
SYMBOL tPLH tPHL CIN CI/O ICCZ ICCL PARAMETER Propagation delay nCPBA to nAx or nCPAB to nBx Input capacitance I/O capacitance Quiescent supply current su current CONDITIONS Tamb = 25°C; GND = 0V CL = 50pF; VCC = 5V VI = 0V or VCC VO = 0V or VCC; 3-State Outputs disabled; VCC = 5.5V Outputs LOW; VCC = 5.5V TYPICAL 2.8 2.3 4 7 500 8 UNIT ns pF pF µA mA
ORDERING INFORMATION
PACKAGES 56-Pin Plastic SSOP Type III 56-Pin Plastic TSSOP Type II 56-Pin Plastic SSOP Type III 56-Pin Plastic TSSOP Type II TEMPERATURE RANGE 40°C to +85°C 40°C to +85°C 40°C to +85°C 40°C to +85°C OUTSIDE NORTH AMERICA 74ABT16952 DL 74ABT16952 DGG 74ABTH16952 DL 74ABTH16952 DGG NORTH AMERICA BT16952 DL BT16952 DGG BH16952 DL BH16952 DGG DWG NUMBER SOT371-1 SOT364-1 SOT371-1 SOT364-1
PIN DESCRIPTION
PIN NUMBER 2, 55 18, 22 3, 54, 26, 31 52, 51, 49, 48, 47, 45, 44, 43 42, 41, 40, 38, 37, 36, 34, 33 1, 56 8, 29 4, 11, 18, 25, 32, 39, 45, 53 4, 17, 30, 43 7, 22, 35, 50 SYMBOL 1CPAB / 1CPBA 2CPAB / 2CPBA 1CEAB / 1CEBA 2CEAB / 2CEBA 1A0 1A7 2A0 2A7 1B0 1B7 2B0 2B7 1OEAB / 1OEBA 2OEAB / 2OEBA GND VCC NAME AND FUNCTION Clock input A to B / Clock input B to A Clock enable input A to B / Clock enable input B to A Data inputs/outputs (A side) Data inputs/outputs (B side) Output enable inputs Ground (0V) Positive supply voltage
1998 Feb 25
2
853-1814 19018
Philips Semiconductors
Product specification
16-bit registered transceiver (3-State)
74ABT16952 74ABTH16952
PIN CONFIGURATION
1OEAB 1CPAB 1CEAB GND 1A0 1A1 V CC 1A2 1A3 1A4 GND 1A5 1A6 1A7 2A0 2A1 2A2 GND 2A3 2A4 2A5 V CC 2A6 2A7 GND 2CEAB 2CPAB 2OEAB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 1OEBA 1CPBA 1CEBA GND 1B0 1B1 V CC 1B2 1B3 1B4 GND 1B5 1B6 1B7 2B0 2B1 2B2 GND 2B3 2B4
LOGIC SYMBOL
5
6
8
9
10
12
13
14
1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7 2 3 55 54 1CPAB 1CEAB 1CPBA 1CEBA 1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7 1OEBA 1OEAB 56 1
52
51
49
48
47
45
44
43
15
16
17
19
20
21
23
24
2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7 27 26 30 2CPAB 2CEAB 2CPBA 2CEBA 2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7 2OEBA 2OEAB 29 28
2B5 V CC 2B6 2B7 GND 2CEBA 2CPBA 2OEBA
31
42
41
40
38
37
36
34
33
SH00071
SH00070
1998 Feb 25
3
Philips Semiconductors
Product specification
16-bit registered transceiver (3-State)
74ABT16952 74ABTH16952
LOGIC SYMBOL (IEEE/IEC) FUNCTION TABLE for Register nAx or nBx
1OEBA 1CEBA 1LPBA 1OEAB 1LEAB 1CPAB 2OEBA 2CEBA 2CPBA 2OEAB 2LEAB 2CPAB 56 54 55 1 3 2 29 31 30 28 26 27 1EN3 G1 1C5 EN4 G2 2C6 EN9 G7 7C11 EN10 G8 8C12 52
INPUTS nAx or nBx X L H nCPXX X nCEXX H L L
INTERNAL Q NC L H
OPERATING MODE Hold data Load data
H = High voltage level L = Low voltage level = Low-to-High transition X = Don't care XX = AB or BA NC = No change
FUNCTION TABLE for Output Enable
INPUTS INTERNAL Q X L H nAx or nBx OUTPUTS Z L H OPERATING MODE Disable outputs Enable outputs
5D 4 51 49 48 47 45 44 43 1B1 1B2 1B3 1B4 1B5 1B6 1B7 2B0 1B0
1A0
5
3 6D
nOEXX H L L
1A1 1A2 1A3 1A4 1A5 1A6 1A7 2A0
6 8 9 10 12 13 14 15 9 12D 11D 10
H = High voltage level L = Low voltage level X = Don't care XX = AB or BA Z = High impedance "off" state
42
2A1 2A2 2A3 2A4 2A5 2A6 2A7
16 17 19 20 21 23 24
41 40 38 37 36 34 33
2B1 2B2 2B3 2B4 2B5 2B6 2B7
SH00086
1998 Feb 25
4
Philips Semiconductors
Product specification
16-bit registered transceiver (3-State)
74ABT16952 74ABTH16952
LOGIC DIAGRAM
nCEAB
nCPAB nOEAB
DETAIL A CE nA0 D CP Q
Q
CE D nB0
CP
nA1 nA2 nA3 nA4 nA5 nA6 nA7 DETAIL A X 7
nB1 nB2 nB3 nB4 nB5 nB6 nB7
nCEBA
nCPBA nOEBA
SH00072
1998 Feb 25
5
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