Features
• Single Voltage Read/Write Operation: 2.65V to 3.6V
32-megabit
(2M x 16)
3-volt Only
Flash Memory
AT49BV320C
AT49BV320CT
Rev. 3372D–FLASH–5/04
Minimum 100,000 Erase Cycles
Common Flash Interface (CFI)
Description
The AT49BV320C(T) is a 2.7-volt 32-megabit Flash memory organized as 2,097,152
words of 16 bits each. The memory is divided into 71 sectors for erase operations.
The device is offered in a 48-lead TSOP and a 47-ball CBGA package. The device has
CE and OE control signals to avoid any bus contention. This device can be read or
reprogrammed using a single power supply, making it ideally suited for in-system
programming.
Pin Configurations
Pin Name Function
A0 - A20 Addresses
CE Chip Enable
OE Output Enable
WE Write Enable
RESET Reset
VPP Write Protection
I/O0 - I/O15 Data Inputs/Outputs
NC No Connect
VCCQ Output Power Supply
WP Write Protect
Access Time – 70 ns
Sector Erase Architecture
– Sixty-three 32K Word (64K Bytes) Sectors with Individual Write Lockout
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout
Fast Word Program Time – 12 µs
Fast Sector Erase Time – 300 ms
Suspend/Resume Feature for Erase and Program
– Supports Reading and Programming from Any Sector by Suspending Erase
of a Different Sector
– Supports Reading Any Word by Suspending Programming of Any Other Word
Low-power Operation
– 12 mA Active
– 13 µA Standby
VPP Pin for Write Protection
WP Pin for Sector Protection
RESET Input for Device Initialization
Flexible Sector Protection
TSOP and CBGA Package Options
Top or Bottom Boot Block Configuration Available
128-bit Protection Register
1