HD74HCT245_15 Datasheet, PDF (5/9 Pages) Renesas Technology Corp – Octal Bus Transceivers (with 3-state outputs)

HD74HCT245
Electrical Characteristics
Item
Input voltage
Output voltage
Off-state output
current
Input current
Quiescent current
Symbol V_CC (V)
V_IH 4.5 to 5.5
V_IL 4.5 to 5.5
V_OH
4.5
4.5
V_OL
4.5
4.5
I_OZ
5.5
Iin
5.5
I_CC
5.5
Ta = 25°C
Min Typ Max
2.0 — —
— — 0.8
4.4 — —
4.18 — —
— — 0.1
— — 0.26
— — ±0.5
— — ±0.1
— — 4.0
Ta = –40 to+85°C
Min Max
2.0
—
—
0.8
4.4
—
4.13
—
—
0.1
—
0.33
—
±5.0
—
±1.0
—
40
Unit
V
V
V
V
µA
µA
µA
Test Conditions
Vin = V_IH or V_IL I_OH = –20 µA
I_OH = –6 mA
Vin = V_IH or V_IL I_OL = 20 µA
I_OL = 6 mA
Vin = V_IH or V_IL,
Vout = V_CC or GND
Vin = V_CC or GND
Vin = V_CC or GND, Iout = 0 µA
Switching Characteristics
Item
Symbol V_CC (V)
Propagation delay time t_PLH
4.5
t_PHL
4.5
Output enable time
t_ZL
4.5
t_ZH
4.5
Output disable time
t_LZ
4.5
t_HZ
4.5
Output rise/fall time
t_TLH
4.5
t_THL
Input capacitance
Cin
—
Ta = 25°C
Min Typ Max
— 11 22
— 13 22
— 17 30
— 14 30
— 20 30
— 22 30
— 4 12
Ta = –40 to +85°C
Min
Max
—
28
—
28
—
38
—
38
—
38
—
38
—
15
—
5
10
—
10
(C_L = 50 pF, Input t_r = t_f = 6 ns)
Unit
Test Conditions
ns
ns
ns
ns
pF
Test Circuit
V_CC
V_CC
G
Input
Pulse Generator
Zout = 50 Ω
DIR
S1
A1
B1
Output
1 K Ω _S2
C_L =
50 pF
OPEN
GND
V_CC
TEST
t_PLH / t_PHL
t_ZH / t_HZ
t_ZL / t_LZ
S2
OPEN
GND
V_CC
Note : 1. C_L includes probe and jig capacitance.
2. A2–B2, A3–B3, A4–B4, A5–B5, A6–B6, A7–B7, A8–B8 are identical to above load circuit.
3. S1 is a input / output swich.
Rev.2.00 Mar 30, 2006 page 3 of 6