AT49BV321 ATMEL Corporation, AT49BV321 Datasheet
AT49BV321
Manufacturer Part Number
AT49BV321
Description
Manufacturer
ATMEL Corporation
Specifications of AT49BV321
Date_code
02+
Packing_info
BGA
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT49BV321T
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT49BV321T-KOREA-H
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Features
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Description
The AT49BV/LV32X(T) is a 3.0-volt 32-megabit Flash memor y organized as
2,097,152 words of 16 bits each or 4,194,304 bytes of 8 bits each. The x16 data
appears on I/O0 - I/O15; the x8 data appears on I/O0 - I/O7. The memory is divided
into 71 sectors for erase operations. The device is offered in 48-lead TSOP, and
48-ball CBGA and µBGA packages. 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
A0 - A20
CE
OE
WE
RESET
RDY/BUSY
VPP
I/O0 - I/O14
I/O15 (A-1)
BYTE
NC
VCCQ
Single Voltage Read/Write Operation: 2.65V to 3.3V (BV), 3.0V to 3.6V (LV)
Access Time – 85 ns
Sector Erase Architecture
Fast Word Program Time – 15 µs
Fast Sector Erase Time – 200 ms
Suspend/Resume Feature for Erase and Program
Low-power Operation
Data Polling, Toggle Bit, Ready/Busy for End of Program Detection
VPP Pin for Write Protection
RESET Input for Device Initialization
Sector Lockdown Support
TSOP, CBGA and µBGA Package Options
Top or Bottom Boot Block Configuration Available
128-bit Protection Register
– Sixty-three 32K Word (64K Bytes) Sectors with Individual Write Lockout
– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout
– Supports Reading and Programming from Any Sector by Suspending Erase
– Supports Reading Any Byte/Word by Suspending Programming of Any
– 25 mA Active
– 10 µA Standby
of a Different Sector
Other Byte/Word
Function
Addresses
Chip Enable
Output Enable
Write Enable
Reset
READY/BUSY Output
Write Protection
Data Inputs/Outputs
I/O15 (Data Input/Output, Word Mode)
A-1 (LSB Address Input, Byte Mode)
Selects Byte or Word Mode
No Connect
Output Power Supply
32-megabit
(2M x 16/4M x 8)
3-volt Only
Flash Memory
AT49BV320
AT49BV320T
AT49BV321
AT49BV321T
AT49LV320
AT49LV320T
AT49LV321
AT49LV321T
Recommend Using
AT49BV320A(T)/322A(T)
for New Designs.
Rev. 1494H–FLASH–01/03
1
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