AS7C256A ETC, AS7C256A Datasheet
AS7C256A
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AS7C256A Summary of contents
Page 1
... Maximum CMOS standby current AS7C3256A 3/7/01; V.0.9.2 ® • Very low power consumption: STANDBY - 11 mW (AS7C256A) / max CMOS I/O - 3.6 mW (AS7C3256A) / max CMOS I/O • Latest 6T 0.25u CMOS technology • 2.0V data retention • Easy memory expansion with CE and OE inputs • TTL-compatible, three-state I/O • 28-pin JEDEC standard packages ...
Page 2
... The device enters standby mode when CE reduction after initial access, resulting in significant power savings during CPU idle, suspend, and stretch mode. Both versions of the AS7C256A offer 2.0V data retention. Equal address access and cycle times (t AA ideal for high-performance applications. The chip enable ( memory organizations ...
Page 3
... industrial T – -10 Device Min Max Min Max Both CC Both CC 90 AS7C256A IL = 0mA 60 AS7C3256A 30 AS7C256A IL = 0mA 30 AS7C3256A 2 AS7C256A –0. AS7C3256A = Min Both CC = Min Both CC Both .5 < NOMINAL) CC Symbol Signals C A, CE, WE I/O I/O Alliance Semiconductor AS7C256A AS7C3256A Typical Max Unit 5 ...
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... – Falling input 3,6,7 Data valid 3,6,8 OLZ Data valid 50% Alliance Semiconductor AS7C256A AS7C3256A -15 -20 Min Max Min Max Unit 15 – 20 – ns – 15 – – 15 – – 4 – – 3 – ...
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... OW 10, Data valid t WZ 10, Data valid Alliance Semiconductor AS7C256A AS7C3256A -15 -20 Min Max Min Max Unit 15 – 20 – – 12 – – 12 – – 0 – – 12 – ...
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... Data retention mode VCC V 2. CDR +5V 480 D out 255 C(14) GND Figure B: Output load required to meet I specification Alliance Semiconductor AS7C256A AS7C3256A Min Max Unit 2.0 – – – – 1 µA VCC Thevenin equivalent 168 D +1 ...
Page 7
... Note: This part is compatible with both pin numbering E 3/7/01; V.0.9.2 ® pin 1(22) pin 8(21) pin 1(7) pin 5(8) 28-pin conventions used by various manufacturers. Alliance Semiconductor AS7C256A AS7C3256A 28-pin SOJ Min Max 0.025 A2 0.095 Seating B 0.028 TYP Plane b 0.018 TYP c 0.010 TYP ...
Page 8
... AS7C256A-12TI AS7C3256A-10TI AS7C3256A-12TI –XX X Package SOJ 300 mil Access time T = TSOP 8x13.4 Alliance Semiconductor AS7C256A AS7C3256A AS7C256A-15JC AS7C256A-20JC AS7C3256A-15JC AS7C3256A-20JC AS7C256A-15JI AS7C256A-20JI AS7C3256A-15JI AS7C3256A-20JI AS7C256A-15TC AS7C256A-20TC AS7C3256A-15TC AS7C3256A-20TC AS7C256A-15TI AS7C256A-20TI AS7C3256A-15TI AS7C3256A-20TI Commercial temperature range ...