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PDF UPD2308A Data sheet ( Hoja de datos )
| Número de pieza | UPD2308A | |
| Descripción | FULLY DECODED 8K-BIT MASK PROGRAMMABLE READ ONLY MEMORY | |
| Fabricantes | NEC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UPD2308A (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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NEe Microcomputers, Inc.
NEe
JL PD2308A
FULLY DECODED 8,192 BIT MASK
PROGRAMMABLE READ ONLY MEMORY
DESCR IPTION
The NECJ,lPD2308A is a high-speed 8, 192-bit mask-programmable Read Only Memory
organized as 1024 words by 8 bits_ The J,lPD2308A is fabricated with N-channel MOS
tech no logy.
The inputs and outputs are fully TTL-compatible_ The device operates with a single
+5V power supply. The three chip select inputs are programmable. Any combination
of active high or low level chip select inputs can be defined and desired chip select
code is fixed during the masking process.
II
F EATU RES
• Access Time 450 ns Max
• 1024 Words x 8 Bits Organization
• Single +5V ±10% Power Supply Voltage
• Directly TTL-Compatible - All Inputs and Outputs
• Two Programmable Chip Select Inputs for Easy Memory Expansion
• Three-State Output - OR-Tie Capability
• On-Chip Address Fully Decoded
• All Inputs Protected Against Static Charge
• Direct Replacement for 2308A
• Available in 24-pin·piastic or ceramic packages
.PIN CONFIGURATION
A7
AS 2
AS 3
A4 4
21
A3 5
A2 S
pPD
2308A
A,
AO S
DO 9
D, 10
D2
GND
12
Vce
As
Ag
NC'
CS,
NC
CS2
D7
DS
D5
D4
D3
PIN NAMES
I IAO - Ag Address Inputs
I DO D7 I Data Outputs
\ CS1 - CS2\PrOgrammable Chip Select Inputs
Rev/1
113
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet UPD2308A.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
| UPD2308A | FULLY DECODED 8K-BIT MASK PROGRAMMABLE READ ONLY MEMORY | NEC |
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