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The W27E040 is a high-speed, low-power Electrically Erasable and Programmable Read-Only Memory organized as 524288 ´ 8 bits that operate on a single 5-volt power supply. The W27E040 provides an electrical chip erase function
27E040 Pinout
27E040 Pin Configuration
Pin Number | Pin Name | Description |
---|---|---|
1 | VPP | Programming Supply |
2 | A16 | Address Input 16 |
3 | A15 | Address Input 15 |
4 | A12 | Address Input 12 |
5 | A7 | Address Input 7 |
6 | A6 | Address Input 6 |
7 | A5 | Address Input 5 |
8 | A4 | Address Input 4 |
9 | A3 | Address Input 3 |
10 | A2 | Address Input 2 |
11 | A1 | Address Input 1 |
12 | A0 | Address Input 0 |
13 | Q0 | Data Input 0 |
14 | Q1 | Data Input 1 |
15 | Q2 | Data Input 2 |
16 | VSS | Ground Pin |
17 | Q3 | Data Input 3 |
18 | Q4 | Data Input 4 |
19 | Q5 | Data Input 5 |
20 | Q6 | Data Input 6 |
21 | Q7 | Data Input 7 |
22 | CE’ | Chip Enable |
23 | A10 | Address Input 10 |
24 | OE’ | Output Enable |
25 | A11 | Address Input 11 |
26 | A9 | Address Input 9 |
27 | A8 | Address Input 8 |
28 | A13 | Address Input 13 |
29 | A14 | Address Input 14 |
30 | A17 | Address Input A17 |
31 | A18 | Address Input A18 |
32 | Vcc | Positive Power Supply |
27E040 Key Features
- High-speed access time:
- 90/120 nS (max.)
- Read operating current: 15 mA (typ.)
- Erase/Programming operating current
- 15 mA (typ.)
- Standby current: 5 mA (typ.)
- Single 5V power supply
- +14V erase/+12V programming voltage
- Fully static operation
- All inputs and outputs directly TTL/CMOS compatible
You can download this datasheet for 27E040 4096K 120ns PLCC EPROM – Datasheet from the link given below: