4.2BR24C01AFV-W-X (IC1502) : EEPROM
• Pin layout
Vcc WP SCL SDA
A0 A1
• Block diagram
A0 1
A1 2
A2 3
GND 4
A2 GND
| 1kbit EEPROM ARRAY |
| |
7bit |
|
| 8bit |
ADDRESS | SLAVE/WORD | DATA | |
DECODER | 7bit ADDRESS REGISTER | REGISTER | |
| START | STOP |
|
CONTROL LOGIC |
|
| |
|
|
| ACK |
HIGH VOLTAGE GEN. |
| Vcc LEVEL DETECT |
|
8Vcc
7WP
6SCL
5SDA
• Pin function
Pin name | I/O | Description |
|
|
|
Vcc | - | Power supply |
|
|
|
GND | - | Ground (0v) |
|
|
|
A0,A1,A2 | IN | Slave address set |
|
|
|
SCL | IN | Serial clock input |
|
|
|
SDA | IN / OUT | Slave and word addressserial data input serial data output *1 |
|
|
|
WP | IN | Write protect input |
|
|
|
*1 An open drain output requires a
