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Numéro de référence | UPD23128 | ||
Description | FULLY DECODED 128K-BIT MASK PROGRAMMABLE READ ONLY MEMORY | ||
Fabricant | NEC | ||
Logo | |||
NEe
NEe Microcomputers, Inc.
}LPD23128
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FULLY DECODED 128K BIT MASK
PROGRAMMABLE READ ONLY MEMORY
OESCR I PTION
The NEC IlPD23128 is a high speed 128K bit mask programmable Read Only Memory
organized as 16,384 words by 8 bits. The IlPD23128 is fabricated with N·channel
MOS technology.
The inputs and outputs are fully TTL compatible. This device operates with a single
+5V power supply. The chip select input is programmable. An active high or low level
chip select input can be defined and is fixed during the masking process.
II
FEATU RES
• 16,384 Words x 8 Bits Organization
• Directly TTL Compatible - All Inputs and Outputs
• Single +5V Power Supply
• High Speed - Access Time 250 ns Max.
• Three-State Output - OR-Tie Capability
• One Programmable Chip Select Input for Easy Memory Expansion
• On-Chip Address Fully Decoded
• All Inputs Protected Against Static Charge
• Pin Compatible with 2764
• Available in 28 Pin Ceramic or Plastic Dual-in-Line Package
PIN CONFIGURATION
NC
A12
A7
Ae
A5
A4
Aa
A2
A1
Ao
01
02
03
VCC
CS
AO- A13
01 ~08
CS
00
CE
PIN NAMES
Address Inputs
Data Outputs
Programmable Chip Select
Output Disable
Chip Enable
04
Rev/1
129
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Pages | Pages 4 | ||
Télécharger | [ UPD23128 ] |
No | Description détaillée | Fabricant |
UPD23128 | FULLY DECODED 128K-BIT MASK PROGRAMMABLE READ ONLY MEMORY | NEC |
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TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
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