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AT49F1604

16-megabit (1M x 16/2M x 8) 5-volt Only Flash Memory

Atmel Corporation 

Features

• 4.5V to 5.5V Read/Write

• Access Time – 90 ns

• Sector Erase Architecture

– Thirty 32K Word (64K byte) Sectors with Individual Write Lockout

– Eight 4K Word (8K byte) Sectors with Individual Write Lockout

– Two 16K Word (32K byte) Sectors with Individual Write Lockout

• Fast Word Program Time – 10 µs

• Fast Sector Erase Time – 200 ms

• Dual-plane Organization, Permitting Concurrent Read while Program/Erase

Memory Plane A: Eight 4K Word, Two 16K Word and Six 32K Word Sectors

Memory Plane B: Twenty-four 32K Word Sectors

• Erase Suspend Capability

– Supports Reading/Programming Data from Any Sector by Suspending Erase of

Any Different Sector

• Low-power Operation

– 60 mA Active

– 3 mA Standby

• DATA Polling, Toggle Bit, Ready/Busy for End of Program Detection

• RESET Input for Device Initialization

• Sector Program Unlock Command

• TSOP, CBGA and µBGA Package Options

• Top or Bottom Boot Block Configuration Available

Description

The AT49F16X4(T) is a 5.0-volt 16-megabit Flash memory organized as 1,048,576

words of 16 bits each or 2,097,152 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 40 sec-

tors for erase operations. The device is offered in 48-lead TSOP and 48-ball 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 5.0V power supply, making it

ideally suited for in-system programming.

The device powers on in the read mode. Command sequences are used to place the

device in other operation modes such as program and erase. The device has the

(continued)

Pin Configurations

Pin Name

A0 - A19

CE

OE

WE

RESET

RDY/BUSY

I/O0 - I/O14

I/O15 (A-1)

BYTE

NC

DC

Function

Addresses

Chip Enable

Output Enable

Write Enable

Reset

READY/BUSY Output

Data Inputs/Outputs

I/O15 (Data Input/Output, Word Mode)

A-1 (LSB Address Input, Byte Mode)

Selects Byte or Word Mode

No Connect

Don’t Connect

16-megabit

(1M x 16/2M x 8)

5-volt Only

Flash Memory

AT49F1604

AT49F1604T

AT49F1614

AT49F1614T

Not Recommended for

New Designs

Rev. 0977J–04/00

1

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