U62256A Alliance Semiconductor, U62256A Datasheet
U62256A
Available stocks
Related parts for U62256A
U62256A Summary of contents
Page 1
... DQ2 16 VSS 14 15 Top View April 20, 2004 Description The U62256A is a static RAM manufactured using a CMOS pro- cess technology with the following operating modes: - Read - Standby - Write - Data Retention The memory array is based on a 6-transistor cell. The circuit is activated by the fal- ling edge of E ...
Page 2
... U62256A Block Diagram A10 A11 A12 A13 A14 Address Change Detector Truth Table Operating Mode Standby/not selected Internal Read Read Write * Memory Cell Array 512 Rows Columns Sense Amplifier/ Write Control Logic Clock ...
Page 3
... Symbol stg | Symbol Conditions well as I Min. Max -40 85 -40 125 -65 125 -65 150 200 Min. Max. 4.5 -0.3 2 U62256A Unit °C °C mA Unit 5 0.3 V ...
Page 4
... U62256A Electrical Characteristics Supply Current - Operating Mode Supply Current - Standby Mode (CMOS level) Supply Current - Standby Mode (TTL level) Output High Voltage Output Low Voltage Input High Leakage Current Input Low Leakage Current Output High Current Output Low Current Output Leakage Current ...
Page 5
... CW w( su HZWE dis( HZOE dis( LZWE en( LZOE en( U62256A 10 Unit Max. Min. Max. 100 ns 70 100 ns 70 100 Unit Max. Min. Max. 100 ns 70 ...
Page 6
... U62256A Data Retention Mode 4 Data Retention Characteristics Data Retention Supply Voltage Data Retention Supply Current Data Retention Setup Time Operating Recovery Time Test Configuration for Functional Check measurement dis(E), dis(W) E-Controlled ≥ CC(DR) 2 Data Retention DR - 0.2 V ≤ ...
Page 7
... Leadfree Option blank = Standard Package G1 = Leadfree Green Package Power Consumption blank = Standard (only A-Type Very Low Power Date of manufacture (The first 2 digits indicating the year, and the last 2 digits the calendar week.) Leadfree Green Package U62256A Unit (C/K-Type) ...
Page 8
... U62256A Read Cycle 1: Ai-controlled (during Read Cycle : DQi Output Read Cycle 2: G-, E-controlled (during Read Cycle DQi Output Address Valid t a(A) Previous Data Valid t v( Address Valid t t su(A) a(E) t en(E) t a(G) t en(G) High Output Data Valid t dis(E) ...
Page 9
... The information describes the type of component and shall not be considered as assured characteristics.Terms of delivery and rights to change design reserved. April 20, 2004 t cW Address Valid t su(E) t su(A-WH) t w(W) t su(A) t su(D) Input Data Valid t dis(W) High Address Valid t su(A) t w(E) t su(W) t su(D) Input Data Valid t dis(W) High-Z t dis( H-level h(A) t h(D) t en(W) t h( L-level U62256A ...
Page 10
... April 20, 2004 Grenzstraße 28 • D-01109 Dresden • • D-01101 Dresden • Germany Phone: +49 351 8822 306 • Fax: +49 351 8822 337 • Email: memory@zmd.de • http://www.zmd.de Zentrum Mikroelektronik Dresden AG U62256A ...