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PDF HD74ALVCH16374 Data sheet ( Hoja de datos )
| Número de pieza | HD74ALVCH16374 | |
| Descripción | 16-bit D-type Flip Flops with 3-state Outputs | |
| Fabricantes | Hitachi Semiconductor | |
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HD74ALVCH16374
16-bit D-type Flip Flops with 3-state Outputs
ADE-205-123B (Z)
3rd. Edition
December 1999
Description
The HD74ALVCH16374 has sixteen edge trigger D type flip flops with three state outputs in a 48 pin
package. Data at the D inputs meeting set up requirements, are transferred to the Q outputs on positive
going transitions of the clock input. When the latch enable goes low, data at the D inputs will be retained at
the outputs until latch enable returns high again. When a high logic level is applied to the output control
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. Low voltage and high speed operation is suitable at the battery drive
product (note type personal computer) and low power consumption extends the life of a battery for long
time operation.
Features
• VCC = 2.3 V to 3.6 V
• 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 output current ±24 mA (@VCC = 3.0 V)
• Bus hold on data inputs eliminates the need for external pullup / pulldown resistors.
1 page  
HD74ALVCH16374
Electrical Characteristics
Item
Input voltage
Symbol VCC (V)*1
VIH 2.3 to 2.7
2.7 to 3.6
Ta = –40 to 85°C
Min Max
1.7 —
2.0 —
Unit Test Conditions
V
V
VIL 2.3 to 2.7 —
2.7 to 3.6 —
0.7 V
0.8 V
Output voltage
VOH Min to Max VCC–0.2 —
V IOH = –100 µA
2.3 2.0 — V IOH = –6 mA, VIH = 1.7 V
2.3 1.7 — V IOH = –12 mA, VIH = 1.7 V
2.7 2.2 — V IOH = –12 mA, VIH = 2.0 V
3.0 2.4 — V IOH = –12 mA, VIH = 2.0 V
3.0 2.0 — V IOH = –24 mA, VIH = 2.0 V
VOL Min to Max —
0.2 V IOL = 100 µA
2.3 — 0.4 V IOL = 6 mA, VIL = 0.7 V
2.3 — 0.7 V IOL = 12 mA, VIL = 0.7 V
2.7 — 0.4 V IOL = 12 mA, VIL = 0.8 V
3.0
—
0.55
V IOL = 24 mA, VIL = 0.8 V
Input current
IIN 3.6
—
±5.0
µA VIN = VCC or GND
I IN(hold)
2.3
45 — µA VIN = 0.7 V
2.3 –45 — µA VIN = 1.7 V
3.0 75 — µA VIN = 0.8 V
3.0 –75 — µA VIN = 2.0 V
3.6
—
±500
µA VIN = 0 to 3.6 V
Off state output current *2 IOZ
3.6
—
±10 µA VOUT = VCC or GND
Quiescent supply current ICC
3.6
—
40 µA VIN = VCC or GND
∆ICC 3.0 to 3.6 —
750 µA One input at (VCC–0.6)V,
other inputs at VCC or GND
Notes: 1. For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
2. For I/O ports, the parameter IOZ includes the input leakage current.
5
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