Data sheet acquired from Harris Semiconductor
SCHS188
CD74HC534, CD74HCT534,
CD74HC564, CD74HCT564
High Speed CMOS Logic Octal D-Type Flip-Flop,
Three-State Inverting Positive-Edge Triggered
Description
The Harris CD74HC534, CD74HCT534, CD74HC564 and
CD74HCT564 are high speed Octal D-Type Flip-Flops manu-
factured with silicon gate CMOS technology. They possess
the low power consumption of standard CMOS integrated cir-
cuits, as well as the ability to drive 15 LSTTL loads. Due to the
large output drive capability and the three-state feature, these
devices are ideally suited for interfacing with bus lines in a bus
organized system. The two types are functionally identical and
differ only in their pinout arrangements.
The CD74HC534, CD74HCT534, CD74HC564 and
CD74HCT564 are positive edge triggered flip-flops. Data at
the D inputs, meeting the setup and hold time requirements,
are inverted and transferred to the Q outputs on the positive
going transition of the CLOCK input. When a high logic level is
applied to the OUTPUT ENABLE input, all outputs go to a
high impedance state, regardless of what signals are present
at the other inputs and the state of the storage elements.
The CD74HCT logic family is speed, function, and pin
compatible with the standard 74LS logic family.
January 1998
Features
鈥?Buffered Inputs
[ /Title
(CD74
HC534
,
CD74
HCT53
4,
CD74
HC564
,
CD74
HCT56
鈥?Common Three-State Output-Enable Control
鈥?Three-State Outputs
鈥?Bus Line Driving Capability
鈥?Typical Propagation Delay = 13ns at V
CC
= 5V,
C
L
= 15pF, T
A
= 25
o
C (Clock to Output)
鈥?Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
鈥?Wide Operating Temperature Range . . . -55
o
C to 125
o
C
鈥?Balanced Propagation Delay and Transition Times
鈥?Signi鏗乧ant Power Reduction Compared to LSTTL
Logic ICs
鈥?HC Types
- 2V to 6V Operation
- High Noise Immunity: N
IL
= 30%, N
IH
= 30% of V
CC
at V
CC
= 5V
鈥?HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V
IL
= 0.8V (Max), V
IH
= 2V (Min)
- CMOS Input Compatibility, I
l
鈮?/div>
1碌A(chǔ) at V
OL
, V
OH
Ordering Information
PART NUMBER
CD74HC534E
CD74HCT534E
CD74HC564E
CD74HCT564E
CD74HC564M
CD74HCT564M
TEMP. RANGE (
o
C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
PACKAGE
20 Ld PDIP
20 Ld PDIP
20 Ld PDIP
20 Ld PDIP
20 Ld SOIC
20 Ld SOIC
PKG.
NO.
E20.3
E20.3
E20.3
E20.3
M20.3
M20.3
NOTES:
1. When ordering, use the entire part number. Add the suf鏗亁 96 to
obtain the variant in the tape and reel.
2. Wafer and die for this part number is available which meets all
electrical specifications. Please contact your local sales office or
Harris customer service for ordering information.
Pinouts
CD74HC534, CD74HCT534
TOP VIEW
OE
Q0
D0
D1
Q1
Q2
D2
D3
Q3
1
2
3
4
5
6
7
8
9
(PDIP)
CD74HC564, CD74HCT564
TOP VIEW
OE
D0
D1
D2
D3
D4
D5
D6
D7
1
2
3
4
5
6
7
8
9
(PDIP, SOIC)
20 V
CC
19 Q0
18 Q1
17 Q2
16 Q3
15 Q4
14 Q5
13 Q6
12 Q7
11 CP
20 V
CC
19 Q7
18 D7
17 D6
16 Q6
15 Q5
14 D5
13 D4
12 Q4
11 CP
GND 10
GND 10
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
漏
Harris Corporation 1998
File Number
1640.1
1
1
2
3
4
5
6
7
8
9
