Philips 74abt377a DATASHEETS

INTEGRATED CIRCUITS

74ABT377A

Octal D-type flip-flop with enable

Product specification
Replaces data sheet 74ABT377 of 1995 Sep 06
IC23 Data Handbook




1997 Feb 26

Philips Semiconductors Product specification

74ABT377AOctal D-type flip-flop with enable

FEA TURES

•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
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

t

PLH

t

PHL

C

I

CCH

IN

Propagation delay
CP to Qn

Input capacitance VI = 0V or V
Total current supply Outputs High; VCC = 5.5V 500 nA

CONDITIONS
= 25°C; GND = 0V

T

amb

CL = 50pF; VCC = 5V

CC

TYPICAL UNIT

3.1

3.6
4 pF

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

) input is

ns

PIN CONFIGURATION

E

1
2

Q0

3

D0

4

D1

5

Q1

6

Q2

7

D2

8

D3

9

Q3

GND

10 11

1997 Feb 26 853-1457 17800

20

V

CC

19

Q7

18

D7

17

D6

16

Q6

15

Q5

14

D5

13

D4

12

Q4
CP

SA00155

LOGIC SYMBOL

11

1

2

3478

D0 D1 D2 D3

CP

OE

Q0 Q1 Q296Q3

52

13 14 17 18

D4 D5 D6 D7

Q4 Q5 Q6

1512

Q7

1916

SA00152

Philips Semiconductors Product specification

74ABT377AOctal D-type flip-flop with enable

LOGIC SYMBOL (IEEE/IEC)

1

G1

11

3

4

7

8

13

14

17

18

IC2

2D

LOGIC DIAGRAM

D0 D1 D2 D3

3478

PIN DESCRIPTION

PIN NUMBER SYMBOL FUNCTION

1 E Enable input (active–Low)

3, 4, 7, 8, 13, 14,

17, 18

2, 5, 6, 9, 12, 15,

2

5

6

9

12

15

16

19

SA00157

16, 19

11 CP Clock Pulse input (active

10 GND Ground (0V)
20 V

D4 D5 D6 D7

13 14 17 18

D0-D7 Data inputs

Q0-Q7 Data outputs

rising edge)

CC

Positive supply voltage

CP

1

E

DQ

CP

11

D

CP

2 5 6 9 12 15 16 19

Q0 Q1 Q2 Q3

D

QQ

CP

DQ

CP

DQ

CP

D

CP

Q4 Q5 Q6 Q7

D

QQ

CP

DQ

CP

SA00158

1997 Feb 26

3

Philips Semiconductors Product specification

74ABT377AOctal D-type flip-flop with enable

FUNCTION TABLE

INPUTS OUTPUTS OPERATING MODE

E CP Dn Qn

l ↑ h H Load “1”
l ↑ l L Load “0”

h
H

H = High voltage level
h = High voltage level one set-up time prior to the Low-to-High clock transition
L = Low voltage level
l = Low voltage level one set-up time prior to the Low-to-High clock transition
X = Don’t care

↑ = Low-to-High clock transition

↑

X

X
X

no change
no change

Hold (do nothing)

ABSOLUTE MAXIMUM RATINGS

SYMBOL

V

CC

I

IK

V

I

I

OK

V

OUT

I

OUT

T

stg

DC supply voltage –0.5 to +7.0 V
DC input diode current VI < 0 –18 mA
DC input voltage
DC output diode current VO < 0 –50 mA
DC output voltage
DC output current output in Low state 128 mA
Storage temperature range –65 to 150 °C

PARAMETER CONDITIONS RATING UNIT

3

3

1, 2

–1.2 to +7.0 V

output in Off or High state –0.5 to +5.5 V

NOTES:

1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .

2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.

3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

RECOMMENDED OPERATING CONDITIONS

SYMBOL PARAMETER LIMITS UNIT

MIN MAX

V

CC

V

V

V

I

OH

I

OL

∆t/∆v Input transition rise or fall rate 0 5 ns/V

T

amb

DC supply voltage 4.5 5.5 V
Input voltage 0 V

I

High-level input voltage 2.0 V

IH

Low-level input voltage 0.8 V

IL

High-level output current –32 mA
Low-level output current 64 mA

Operating free-air temperature range –40 +85 °C

CC

V

1997 Feb 26

4