cy24c01 Cypress Semiconductor Corporation., cy24c01 Datasheet - Page 2

• Manufacturer Part Number: cy24c01
• Description: 1 Kbit, 2 Kbit, 4 Kbit, 8 Kbit, And 16 Kbit X8 Two Wire I2c Serial Eeprom
• Manufacturer: Cypress Semiconductor Corporation.

Pinouts
Table 1. Pin Definitions - 8-Pin SOIC/TSSOP Package
Document #: 001-15632 Rev. *C
A0–A2
Name
SDA
SCL
V
V
WP
Pin
CC
SS
8-SOIC/TSSOP
Pin Number
1,2,3
4
5
6
7
8
Power Supply Power Supply. The power supply inputs to the device.
Input/Output
I/O Type
Figure 1. Pin Diagram - 8-Pin SOIC/TSSOP Package
Ground
Input
Input
Input
V
A2
SS
A1
A0
1
4
3
Device Address Pins. The CY24C01 and CY24C02 uses the A2, A1, and A0
inputs for hard wire addressing and a total of eight 1K and 2K devices may be
addressed on a single bus system.
The CY24C04 uses the A2 and A1 inputs for hard wire addressing and a total of
four 4K devices may be addressed on a single bus system. The A0 pin is a no
connect.
The CY24C08 uses only the A2 input for hardwire addressing and a total of two
8K devices may be addressed on a single bus system. The A0 and A1 pins are
no connects.
The CY24C16 does not use the device address pins which limit the number of
devices on a single bus to one. The A0, A1, and A2 pins are no connects.
Ground. The ground for the device. It must be connected to the ground of the
system.
Serial Data. The SDA pin is bidirectional for serial data transfer. This pin is open
drain driven and is wired-ORed with any number of other open drain or open
collector devices.
Serial Clock. The SCL input is used to positive edge clock data into each
EEPROM device and negative edge clock data out of each device.
Write Protect. The CY24C01/02/04/08/16 has a write protect pin that provides
hardware data protection. The write protect pin allows normal read and write
operations when connected to ground (GND). When the write protect pin is
connected to VCC, the write protection feature is enabled and operates as shown
in
2
Table 2
(not to scale)
Top View
on page 3.
8
7
6
5
SCL
WP
V
SDA
Description
CC
CY24C01/02/04/08/16
Page 2 of 16
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