74ABT2952 Philips Semiconductors, 74ABT2952 Datasheet - Page 2

• Manufacturer Part Number: 74ABT2952
• Description: Octal registered transceiver 3-State
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
PIN CONFIGURATION
24-Pin Plastic DIP
24-Pin plastic SO
24-Pin Plastic SSOP Type II
24-Pin Plastic TSSOP Type I
1998 Feb 11
8-bit registered transceiver
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
and 200V per Machine Model
Power-up 3-State
Power-up reset
Live insertion/extraction permitted
Octal registered transceiver (3-State)
SYMBOL
t
t
I
C
C
CCZ
PLH
PHL
I/O
IN
PACKAGES
OEAB
CPAB
CEAB
GND
Propagation delay
CPBA to An or
CPAB to Bn
Input capacitance
I/O capacitance
Total supply current
B6
B5
B4
B3
B2
B1
B0
B7
10
11
12
1
2
3
4
5
6
7
8
9
PARAMETER
SA00114
TEMPERATURE RANGE
24
23
22
21
20
19
18
17
16
15
14
13
V
A7
A6
A5
A4
A3
A2
A1
A0
OEBA
CPBA
CEBA
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
CC
C
V
Outputs disabled; V
Outputs disabled; V
I
L
= 0V or V
= 50pF; V
OUTSIDE NORTH AMERICA
CC
CC
T
2
amb
= 5V
74ABT2952 PW
74ABT2952 DB
DESCRIPTION
The 74ABT2952 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT2952 device is an 8-bit registered transceiver. Two 8-bit
back-to-back 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 (CPXX) provided that the
Clock Enable (CEXX) is Low. The data is then present at the 3-State
output buffers, but is only accessible when the Output Enable
(OEXX) is Low. Data flow from A inputs to B outputs is the same as
for B inputs to A outputs.
PIN DESCRIPTION
O
CC
74ABT2952 N
74ABT2952 D
CONDITIONS
1, 2, 3, 4, 5,
= 25 C; GND = 0V
16, 17, 18,
19, 20, 21,
NUMBER
= 0V or V
=5.5V
10, 14
11, 13
22, 23
6, 7, 8
9, 15
PIN
12
24
CC
SYMBOL
A0 – A7
B0 – B7
CEAB /
OEAB /
CPAB /
OEBA
CPBA
CEBA
GND
V
CC
NORTH AMERICA
7ABT2952PW DH
74ABT2952 DB
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 outputs/outputs (B side)
Output enable inputs
Ground (0V)
Positive supply voltage
74ABT2952 N
74ABT2952 D
NAME AND FUNCTION
TYPICAL
110
74ABT2952
5.7
4
7
Product specification
DWG NUMBER
853-1554 18949
SOT222-1
SOT137-1
SOT340-1
SOT355-1
UNIT
ns
pF
pF
A