HM6208H Datasheet | Hitachi Semiconductor

Features - Single 5 V supply and high density 24-pin package - High speed: Access time 25/35/45 ns (max) - Low power  Operation: 300 m W (typ)  Standby: 100 µW (typ) 30 µW (typ) (L-version) - pletely static memory required  No clock or timing strobe required - Equal access and cycle time - Directly TTL patible: All inputs and outputs - Battery backup operation capability (L-version) Ordering Information Type No. HM6208HP-25 HM6208HP-35 HM6208HP-45 HM6208HLP-25 HM6208HLP-35 HM6208HLP-45 HM6208HJP-25 HM6208HJP-35 HM6208HJP-45 HM6208HLJP-25 HM6208HLJP-35 HM6208HLJP-45 Access Time 25 ns 35 ns 45 ns 25 ns 35 ns 45 ns 25 ns 35 ns 45 ns 25 ns 35 ns 45 ns 300-mil, 24-pin SOJ (CP-24D) Package 300-mil, 24-pin plastic DIP (DP-24NC) HM6208H Series Pin Arrangement A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 CS VSS 1 2 3 4 5 6 7 8 9 10 11 12 (Top view) 24 23 22 21 20 19 18 17 16 15 14 13 VCC A15 A14 A13 A12 A11 A10 I/O1 I/O2 I/O3 I/O4 WE Pin Description Pin Name A0- A15 I/O1- I/O4 CS WE VCC VSS Function Address lnput/output Chip select Write enable Power supply Ground HM6208H Series Block Diagram A14 A15 A0 A1 A2 A3 A4 A5 I/O1 I/O2 I/O3 I/O4 A13 A12 A11 A10 A9 A8 A7 A6 Input data control VCC Row decoder Memory array 256 × 1024 VSS Column I/O Column decoder CS WE Truth Table CS H L L WE × H L Mode Not selected Read Write VCC Current I SB , I SB1 I CC I CC I/O Pin High-Z Dout Din Ref. Cycle - Read cycle Write cycle Note: ×: Don’t care. Absolute Maximum Ratings Parameter Voltage on any pin relative to V SS Power dissipation Operating temperature range Storage temperature range Storage temperature range under bias Note: Symbol Vin PT Topr Tstg Tbias Value - 0.5 to +7.0 1.0 0 to +70 - 55 to +125 - 10 to +85 - 1 Unit V W °C °C °C 1. Vin min = - 2.5 V for pulse widths ≤ 10 ns. HM6208H Series Remended DC Operating Conditions (Ta = 0 to +70 °C) Parameter Supply voltage Symbol VCC VSS Input high (logic 1) voltage Input low (logic 0) voltage Note: VIH VIL Min 4.5 0 2.2 -...