Philips Semiconductors Product specification
74ABT377AOctal D-type flip-flop with enable
2
1997 Feb 26 853-1457 17800
FEATURES
• Ideal for addressable register applications
• 8-bit positive edge-triggered register
• Enable for address and data synchronization applications
• Output capability: +64mA/-32mA
• Latch-up protection exceeds 500mA per Jedec JC40.2 Std 17
• ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
• Power-up reset
DESCRIPTION
The 74ABT377A high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT377A has 8 edge-triggered D-type flip-flops with
individual D inputs and Q outputs. The common buffered clock (CP)
input loads all flip-flops simultaneously when the Enable (E
) input is
Low.
The register is fully edge triggered. The state of each D input, one
set-up time before the Low-to-High clock transition, is transferred to
the corresponding flip-flop’s Q output.
The E
input must be stable one setup time prior to the Low-to-High
clock transition for predictable operation.
QUICK REFERENCE DATA
SYMBOL PARAMETER
CONDITIONS
T
amb
= 25°C; GND = 0V
TYPICAL UNIT
t
PLH
t
PHL
Propagation delay
CP to Qn
C
L
= 50pF; V
CC
= 5V
3.1
3.6
ns
C
IN
Input capacitance V
I
= 0V or V
CC
4 pF
I
CCH
Total current supply Outputs High; V
CC
= 5.5V 500 nA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
20-Pin Plastic DIP –40°C to +85°C 74ABT377A N 74ABT377A N SOT146-1
20-Pin plastic SO –40°C to +85°C 74ABT377A D 74ABT377A D SOT163-1
20-Pin Plastic SSOP Type II –40°C to +85°C 74ABT377A DB 74ABT377A DB SOT339-1
20-Pin Plastic TSSOP Type I –40°C to +85°C 74ABT377A PW 74ABT377PWA DH SOT360-1
PIN CONFIGURATION
20
19
18
17
16
15
14
13
12
10 11
9
8
7
6
5
4
3
2
1
V
CC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
CP
Q0
D0
D1
Q1
Q2
D2
D3
Q3
GND
E
SA00155
LOGIC SYMBOL
52
Q0 Q1 Q2
96
Q3
3478
D0 D1 D2 D3
11
1
1512
Q4 Q5 Q6
1916
Q7
13 14 17 18
D4 D5 D6 D7
CP
OE
SA00152
