PI74ALVCH16344 Datasheet, PDF (1/7 Pages) Pericom Semiconductor Corporation – 1-Bit to 4-Bit Address/Driver with 3-State Outputs

PI74ALVCH16344
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1-Bit to 4-Bit Address/Driver
with 3-State Outputs
Product Features
• PI74ALVCH16344 is designed for low voltage operation
• V_CC = 2.3V to 3.6V
• Hysteresis on all inputs
• Typical V_OLP (Output Ground Bounce)
< 0.8V at V_CC = 3.3V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot)
< 2.0V at V_CC = 3.3V, T_A = 25°C
• Bus Hold retains last active bus state during 3-State,
eliminating the need for external pullup resistors
• Industrial operation at –40°C to +85°C
• Packages available:
– 56-pin 240 mil wide plastic TSSOP (A)
– 56-pin 300 mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor’s PI74ALVCH series of logic circuits are
produced in the Company’s advanced 0.5 micron CMOS technology,
achieving industry leading speed.
The PI74ALVCH16344 is a 1-bit to 4-bit buffer/driver designed for
2.3V to 3.6V Vcc operation.
The address/driver is designed for applications where four seperate
memory locations must be addressed by a single address.
To ensure the high-impedance state during power up or power down,
OE should be tied to VCC through a pullup resistor; the minimum
value of the resistor is determined by the current-sinking capability
of the driver.
The PI74ALVCH16344 has “Bus Hold” which retains the data
input’s last state whenever the data input goes to high-impedance
preventing “floating” inputs and eliminating the need for pullup/
down resistors.
Logic Block Diagram
OE1 ¹
A1 ⁸
2 _B11
6 _B14
OE3 ²⁹
A5 ³⁶
34 _B51
30 _B54
A2 ¹⁴
9 _B21
13
B24
A6 ⁴²
41 _B61
37 _B64
28
OE2
15
A3
A4 ²¹
16 _B31
20 _B34
23 _B41
27 _B44
56
OE4
A7 ⁴³
A8 ⁴⁹
48 _B71
44 _B74
55 _B81
51 _B84
1
PS8166B 10/19/99