Part Number: 70V657S10BC vs 70V639S12BFI

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Part Number: 70V657S10BC 70V639S12BFI
Manufacturer: IDT, Integrated Device Technology Inc IDT, Integrated Device Technology Inc
Description: IC SRAM 1.125MBIT 10NS 256CABGA IC SRAM 2.25MBIT 12NS 208CABGA
Quantity Available: Available Available
Datasheets: IDT Suffixes -
Factory Lead Time 12 Weeks 17 Weeks
Mounting Type Surface Mount Surface Mount
Package / Case 256-LBGA 208-LFBGA
Supplier Device Package 256-CABGA (17x17) 208-CABGA (15x15)
Operating Temperature 0°C~70°C TA -40°C~85°C TA
Packaging Tray Tray
Part Status Active Active
Moisture Sensitivity Level (MSL) 4 (72 Hours) 3 (168 Hours)
Technology SRAM - Dual Port, Asynchronous SRAM - Dual Port, Asynchronous
Voltage - Supply 3.15V~3.45V 3.15V~3.45V
Base Part Number IDT70V657 IDT70V639
Memory Size 1.125Mb 32K x 36 2.25Mb 128K x 18
Memory Type Volatile Volatile
Access Time 10ns 12ns
Memory Format SRAM SRAM
Memory Interface Parallel Parallel
Write Cycle Time - Word, Page 10ns 12ns
RoHS Status Non-RoHS Compliant Non-RoHS Compliant
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