(min.). Capability of driving 50
鈩?/div>
transmission lines.
Balanced Propagation Delays:
t
pLH
= t
pHL
Wide Operating Voltage Range:
V
CC
(opr.) = 2V~5.5V
Pin and Function Compatible with 74F377
Available in DIP, SOIC and SOP Packages
The TC74AC377 is an advanced high speed CMOS OCTAL
D-TYPE FLIP-FLOP fabricated with silicon gate and double-
layer metal wiring C
2
MOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL, while maintaining the CMOS low
power dissipation.
These 8-bit D-type flip-flops are controlled by a clock input
(CK) and a output enable input (G).
The signal level applied to the D inputs are transferred to Q
outputs during the positive going transition of CK.
When the G is high, the eight outputs are in a high imped-
ance state.
All inputs are equipped with protection circuits against
static discharge or transient excess voltage.
Truth Table
Pin Assignment
G
Q1
D1
D2
Q2
Q3
D3
D4
Q4
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
(TOP VIEW)
V
CC
Q8
D8
D7
Q7
L
Q6
D6
D5
Q5
CK
X:
X
Don鈥檛 care
X
NO CHANGE
L
H
H
L
L
G
H
CLOCK
X
DATA
X
Q
NO CHANGE
INPUTS
OUTPUT
GND
10
IEC Logic Symbol
(1)
G
(11)
CK
(3)
D1
(4)
D2
(7)
D3
(8)
D4
(13)
D5
(14)
D6
(17)
D7
(18)
D8
G1
1C2
2D
(2)
Q1
(5)
Q2
(6)
Q3
(9)
Q4
(12)
Q5
(15)
Q6
(16)
Q7
(19)
Q8
The information contained here is subject to change without notice.
The information contained herein is presented only as guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties
which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. These TOSHIBA products are intended for usage in general electronic
equipments (of鏗乧e equipment, communication equipment, measuring equipment, domestic electri鏗乧ation, etc.) Please make sure that you consult with us before you use these TOSHIBA products in equip-
ments which require high quality and/or reliability, and in equipments which could have major impact to the welfare of human life (atomic energy control, spaceship, traf鏗乧 signal, combustion control, all types
of safety devices, etc.). TOSHIBA cannot accept liability to any damage which may occur in case these TOSHIBA products were used in the mentioned equipments without prior consultation with TOSHIBA.
TOSHIBA CORPORATION
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