Document
TC74ACT374P/F/FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74ACT374P, TC74ACT374F, TC74ACT374FT
Octal D-Type Flip-Flop with 3-State Output
The TC74ACT374 is an advanced high speed CMOS OCTAL FLIP-FLOP fabricated with silicon gate and double-layer metal wiring C2MOS technology.
It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.
This devices may be used as a level converter for interfacing TTL or NMOS to High Speed CMOS. The inputs are compatible with TTL, NMOS and CMOS output voltage levels.
These 8-bit D-type flip-flops are controlled by a clock input (CK) and a output enable input ( OE ).
When the OE input is high, the eight outputs are in a high impedance state.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Features
• High speed: fmax = 180 MHz (typ.) at VCC = 5 V • Low power dissipation: ICC = 8 μA (max) at Ta = 25°C • Compatible with TTL outputs: VIL = 0.8 V (max)
VIH = 2.0 V (min) • Symmetrical output impedance: |IOH| = IOL = 24 mA (min)
Capability of driving 50 Ω transmission lines. • Balanced propagation delays: tpLH ∼− tpHL • Pin and function compatible with 74F374
TC74ACT374P
TC74ACT374F
TC74ACT374FT
Weight DIP20-P-300-2.54A SOP20-P-300-1.27A TSSOP20-P-0044-0.65A
: 1.30 g (typ.) : 0.22 g (typ.) : 0.08 g (typ.)
Start of commercial production
1988-10
1
2014-03-01
Pin Assignment
TC74ACT374P/F/FT
IEC Logic Symbol
OE 1 Q0 2 D0 3 D1 4 Q1 5 Q2 6 D2 7 D3 8 Q3 9 GND 10
(top view)
Truth Table
Inputs
OE CK D
H
X
X
L
X
L
L
L
H
X: Don’t care Z: High impedance Qn: No change
Output Q Z Qn L H
System Diagram
20 VCC 19 Q7 18 D7 17 D6 16 Q6 15 Q5 14 D5 13 D4 12 Q4 11 CK
OE (1) EN CK (11) C1
D0 (3) 1D D1 (4) D2 (7) D3 (8) D4 (13) D5 (14) D6 (17) D7 (18)
(2) Q0 (5) Q1 (6) Q2 (9) Q3 (12) Q4 (15) Q5 (16) Q6 (19) Q7
11 CK
D0
D1
D2
D3
D4
D5
D6
D7
3
4
7
8
13
14
17
18
D
D
D
D
D
D
D
D
Q CK
Q CK
Q CK
Q CK
Q CK
Q CK
Q CK
Q CK
1 OE
2 Q0
5 Q1
6 Q2
9 Q3
12 Q4
15 Q5
16 Q6
19 Q7
2
2014-03-01
TC74ACT374P/F/FT
Absolute Maximum Ratings (Note 1)
Characteristics
Symbol
Rating
Unit
Supply voltage range DC input voltage DC output voltage Input diode current Output diode current DC output current DC VCC/ground current Power dissipation Storage temperature
VCC VIN VOUT IIK IOK IOUT ICC PD Tstg
−0.5 to 7.0
V
−0.5 to VCC + 0.5
V
−0.5 to VCC + 0.5
V
±20
mA
±50
mA
±50
mA
±200
mA
500 (DIP) (Note 2)/180 (SOP/TSSOP)
mW
−65 to 150
°C
Note 1:
Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/curre.