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HY638256

Hyundai
Part Number HY638256
Manufacturer Hyundai
Description 32K X 8-Bit CMOS Fast SRAM
Published Mar 10, 2009
Detailed Description DESCRIPTION The HY638256 is a high-speed 32,768 x 8-bits CMOS static RAM fabricated using Hyundai's high performance tw...
Datasheet PDF File HY638256 PDF File

HY638256
HY638256

Overview
DESCRIPTION The HY638256 is a high-speed 32,768 x 8-bits CMOS static RAM fabricated using Hyundai's high performance twin tub CMOS process technology.
This high reliability process coupled with high-speed circuit design techniques, yields maximum access time of 15ns.
The HY638256 has a data retention mode that guarantees data to remain valid at a minimum power supply voltage of 2.
0 volt.
It is suitable for use in high-density high-speed system applications.
FEATURES A0 ROW DECODER I/O1 SENSE AMP ADD INPUT BUFFER WRITE DRIVER A14 I/O8 /CS CONTROL LOGIC /OE /WE COLUMN DECODER OUTPUT BUFFER • Single 5V±10% Power Supply • High speed - 15/20/25ns(max.
) • Low power consumption(Max.
) Mode Conditions Current Units Operating 15ns 100 mA 20/25ns 90 mA Standby TTL 30 mA CMOS 2 mA L 100 uA • Battery backup(L-part) - 2.
0V(min) data retention • Fully static operation and Tri-state outputs - No clock or refresh required • TTL compatible inputs and outputs • Standard pin configuration - 28pin 300mil SOJ - 28pin 8 x 13.
4 mm TSOP-I MEMORY ARRAY 256x1024 PIN CONNECTION www.
DataSheet4U.
com HY638256 Series 32Kx8bit CMOS FAST SRAM DC ELECTRICAL CHARACTERISTICS Min -2 -2 2.
4 Type 20 - HY638256 Series Max 2 2 100 90 30 2 100 0.
4 - Unit uA uA mA mA mA mA uA V V BLOCK DIAGRMM Vcc = 5.
0V±10%, TA = 0°C to 70°C, unless otherwise specified.
Symbol Parameter Test Conditions ILI Input Leakage Current VSS < VIN < VCC ILO Output Leakage Current VSS < VOUT Duty Cycle = 100% 20/25ns ISB TTL Standby Current /CS = VIH, VIN=VIH or VIL, Min.
Cycle (TTL Inputs) ISB1 CMOS Standby Current /CS > VCC-0.
2V, VIN > (CMOS Inputs) VCC-0.
2V or VIN < 0.
2V L VOL Output Low Voltage IOL = 8.
0mA VOH Output High Voltage IOH = -4.
0mA Note : Typical values are at Vcc = 5.
0V, TA = 25°C AC CHARACTERISTICS -20 Min Max -25 Min Max Unit PIN DESCRIPTION 20 3 3 0 0 3 20 20 10 10 8 - 25 3 3 0 0 3 25 25 ...


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