GENERAL DESCRIPTION

The MT28C3214P2FL and MT28C3214P2NFL combination Flash and SRAM memory devices provide a compact, low-power solution for systems where PCB real estate is at a premium. The dual-bank Flash is a high-performance, high-density, nonvolatile memory device with a revolutionary architecture that can significantly improve system performance.

FEATURES

• Flexible dual-bank architecture

• Support for true concurrent operations with no latency:

Read bank b during program bank a and vice versa

Read bank b during erase bank a and vice versa

• Organization: 2,048K x 16 (Flash)

256K x 16 (SRAM)

• Basic configuration:

Flash

Bank a (4Mb Flash for data storage)

– Eight 4K-word parameter blocks

– Seven 32K-word blocks

Bank b (28Mb Flash for program storage)

– Fifty-six 32K-word main blocks

SRAM

4Mb SRAM for data storage

– 256K-words

• F_VCC, VCCQ, F_VPP, S_VCC voltages1

1.65V (MIN)/1.95V (MAX) F_VCC read voltage or

1.80V (MIN)/2.20V (MAX) F_VCC read voltage

1.65V (MIN)/1.95V (MAX) S_VCC read voltage or

1.80V (MIN)/2.20V (MAX) S_VCC read voltage

1.65V (MIN)/1.95V (MAX) VCCQ or

1.80V (MIN)/2.20V (MAX) VCCQ

1.80V (TYP) F_VPP (in-system PROGRAM/ERASE)

0.0V (MIN)/2.20V (MAX) F_VPP (in-system

PROGRAM/ERASE)2

12V ±5 (HV) F_VPP (production programming

compatibility)

• Asynchronous access time1

Flash access time: 100ns or 110ns @ 1.65V F_VCC

SRAM access time: 100ns @ 1.65V S_VCC

• Page Mode read access1

Interpage read access: 100ns/110ns @ 1.65V F_VCC

Intrapage read access: 35ns/45ns @ 1.65V F_VCC

• Low power consumption

• Enhanced suspend options

ERASE-SUSPEND-to-READ within same bank

PROGRAM-SUSPEND-to-READ within same bank

ERASE-SUSPEND-to-PROGRAM within same bank

• Read/Write SRAM during program/erase of Flash

• Dual 64-bit chip protection registers for security

purposes

• PROGRAM/ERASE cycles

100,000 WRITE/ERASE cycles per block

• Cross-compatible command set support

Extended command set

Common flash interface (CFI) compliant