HD74LVCZ245A Datasheet PDF - Hitachi Semiconductor
| Part Number | HD74LVCZ245A | |
| Description | Octal Bidirectional Transceivers with 3-state Outputs | |
| Manufacturers | Hitachi Semiconductor | |
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HD74LVCZ245A
Octal Bidirectional Transceivers with 3–state Outputs
ADE-205-228A (Z)
2nd. Edition
February 1999
Description
The HD74LVCZ245A has eight buffers with three state outputs in a 20 pin package. When (T / R) is high,
data flows from the A inputs to the B outputs, and when (T / R) is low, data flows from the B inputs to the
A outputs. A and B bus are separated by making enable input (OE) high level.
When VCC is between 0 and 1.5 V, the device is in the high impedance state during power up or power
down.
Low voltage and high speed operation is suitable at battery drive product (note type personal computer) and
low power consumption extends the life of a battery for long time operation.
Features
• VCC = 2.7 to 5.5 V
• All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V)
• All inputs / outputs VI / O (Max) = 5.5 V (@VCC = 0 V or output off state)
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• High impedance state during power up and power down
• Power off disables outputs, permitting live insertion
• High output current ±24 mA (@VCC = 3.0 to 5.5 V)
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HD74LVCZ245A
Electrical Characteristics (Ta = –40 to 85°C)
Item
Input voltage
Symbol VCC (V) Min Typ
VIH 2.7 to 3.6 2.0 —
4.5 to 5.5 VCC×0.7 —
VIL 2.7 to 3.6 — —
4.5 to 5.5 — —
Output voltage
VOH 2.7 to 5.5 VCC–0.2 —
2.7 2.2 —
3.0 2.4 —
3.0 2.2 —
4.5 3.8 —
VOL 2.7 to 5.5 — —
2.7 — —
3.0 — —
4.5 — —
Input current
I IN
Off state output current IOZ
I OZPU
I OZPD
Output leak current IOFF
Quiescent supply
I CC
current
0 to 5.5 —
2.7 to 5.5 —
0 to 1.5 —
1.5 to 0 —
0—
2.7 to 3.6 —
2.7 to 5.5 —
—
—
—
—
—
—
—
∆ICC 2.7 to 3.6 —
—
Input capacitance
CIN 3.3
— 3.4
Input / output
capacitance
CI/O 3.3
— 8.5
Note: 1. This applies in the disabled state only.
Max Unit Test Conditions
—V
—
0.8
VCC×0.3
—V
—
—
IOH = –100 µA
IOH = –12 mA
— IOH = –24 mA
—
0.2
0.4
0.55
0.55
IOL = 100 µA
IOL = 12 mA
IOL = 24 mA
±5 µA VIN = 0 to 5.5 V
±5 µA VOUT = 0 to 5.5 V
±5 VOUT = 0.5 to 5.5 V,
±5 Output enable = don’t care
±5 µA VIN or VO = 5.5 V
225 µA VIN = 3.6 to 5.5 V *1, IO = 0
350 VIN = VCC or GND
500 VIN = one input at (VCC–0.6) V,
other inputs at VCC or GND
— pF VIN = VCC or GND
— pF VOUT = VCC or GND
5
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| Information | Total 11 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
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