ACE24C32_1 ACE [ACE Technology Co., LTD.], ACE24C32_1 Datasheet - Page 3

• Manufacturer Part Number: ACE24C32_1
• Description: Two-wire Serial EEPROM
• Manufacturer: ACE [ACE Technology Co., LTD.]

Ordering information
Serial Clock (SCL):
data out of each device.
Serial Data (SDA):
wire-ORed with any number of other open-drain or open-collector devices.
Device/Page Addresses (A2, A1, A0):
hardware compatibility with other ACE24CXX/ACE24CXX devices. When the pins are hardwired, as
many as eight 32K/64K devices may be addressed on a single bus system (device addressing is
discussed in detail under the Device Addressing section).If the pins are left floating, the A2, A1 and A0
pins will be internally pulled down to GND if the capacitive coupling to the circuit board Vcc plane is <
3pF, if coupling is > 3pF recommends connecting the address pins to GND.
Write Protect (WP):
when connected to ground (GND). When the Write Protect pin is connected to Vcc. All write operations
to the memory are inhibited. If the pin is left floating, the WP pin will be internally pulled is < 3pF , if
coupling is > 3pF, recommends connecting the pins to GND. Switching WP to Vcc prior to a write
operation creates a software write protected function.
Write Protect Description
The ACE24C32/64 has a Write Provides hardware data protection. The WP pin allows normal write operations
WP Pin Status
The SCL input is used to positive edge clock data into each EEPROM device and negative edge clock
The SDA pin is bi-directional for serial data transfer. This pin is open-drain driven and may be
The A2, A1 and A0 pins are device address inputs that are hardwired or left not connected for
Selection Guide
WP=GND
WP=V
ACE24C32/64 XX
CC
Full (32K) Memory Full (64K) Memory
ACE24C32
Normal Read/Write Operations
Part of the Array Protected
+
Technology
X
U : Tube
T : Tape and Reel
Pb - free
DM : TDFN
ACE24C64
Two-wire Serial EEPROM
ACE24C32/64
VER 1.3
3