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Part No. : A62S8308V-55S

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A62S8308 Series Preliminary Document Title 256K X 8 BIT LOW VOLTAGE CMOS SRAM Revision History Rev. No. 0.0 0.1 0.2 256K X 8 BIT LOW VOLTAGE CMOS SRAM History Initial issue Modify VCCmax from 3.3V to 3.6V Add 55ns grade spec. for VCC = 3.0V to 3.6V Issue Date December 6, 1999 December 20, 2000 March 23, 2001 Remark Preliminary PRELIMINARY (March, 2001, Version 0.2) AMIC Technology, Inc. A62S8308 Series Preliminary Features n Power supply range: 2.7V to 3.6V n Access times: 55ns (max.): for VCC = 3.0V to 3.6V 70ns (max.): for VCC = 2.7V to 3.6V n Current: A62S8308-S series: Operating: 40mA (max.) Standby: 10µA (max.) A62S8308-SI series: Operating: 40mA (max.) Standby: 15µA (max.) n Extended operating temperature range:-25°C to 85°C for –SI series n n n n Full static operation, no clock or refreshing required All inputs and outputs are directly TTL compatible Common I/O using three-state output Output enable and two chip enable inputs for easy application n Data retention voltage: 2V (min.) n Available in 32-pin SOP, TSOP, sTSOP (8X 13.4mm) forward type and 36-ball Mini BGA (6X8) packages 256K X 8 BIT LOW VOLTAGE CMOS SRAM General Description The A62S8308 is a low operating current 2,097,152-bit static random access memory organized as 262,144 words by 8 bits and operates on a low power supply voltage from 2.7V to 3.6V. Inputs and three-state outputs are TTL compatible and allow for direct interfacing with common system bus structures. Two chip enable inputs are provided for power down and a device enable and an output enable input are included for easy interfacing. Data retention is guaranteed at a power supply voltage as low as 2V. Pin Configurations n SOP n TSOP/(sTSOP) (forward type) n Mini BGA (6X8) Top View A17 A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O 0 I/O 1 I/O 2 GND 1 2 3 4 5 6 32 31 30 29 28 27 VCC CE2 WE A13 A8 A9 A11 OE A10 CE1 I/O 7 I/O 6 I/O 5 I/O 4 I/O 3 ~ A15 A11 A9 A8 A13 WE CE2 A15 VCC A17 A16 A14 A12 A7 A6 A5 A4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OE A10 CE1 I/O 7 I/O 6 I/O 5 I/O 4 I/O 3 GND I/O 2 I/O 1 I/O 0 A0 A1 A2 A3 2 A1 A2 3 CE2 WE 4 A3 A4 A5 5 A6 A7 6 A8 I/O0 I/O1 VCC VSS A B C D E F G H A0 I/O4 I/O5 VSS VCC I/O6 I/O7 A9 NC A62S8308M 7 8 9 10 11 12 13 14 15 16 26 25 24 23 22 21 20 19 18 17 A62S8308V (A62S8308X) NC OE CE1 A17 A16 A12 A15 A13 I/O2 I/O3 A14 ~ ~ A10 A11 PRELIMINARY (March, 2001, Version 0.2) 1 AMIC Technology, Inc. A62S8308 Series Block Diagram A0 VCC GND A15 A16 A17 ROW DECODER 1024 X 2048 MEMORY ARRAY I/O0 INPUT DATA CIRCUIT COLUMN I/O I/O7 CE2 CE1 OE WE CONTROL CIRCUIT Pin Descriptions - SOP Pin No. 1 - 12, 23, 25 - 28, 31 13 - 15, 17 - 21 16 22 24 29 30 32 Symbol A0 - A17 Description Address Inputs Pin Description - TSOP/sTSOP Pin No. 1 - 4, 7, 9 - 20, 31 5 6 8 21 - 23, 25 - 29 24 30 32 Symbol A0 - A17 WE Description Address Inputs Write Enable Chip Enable 2 Power Supply Data Inputs/Outputs Ground Chip Enable 1 Output Enable I/O0 - I/O7 GND CE1 OE WE Data Inputs/Outputs Ground Chip Enable 1 Output Enable Write Enable Chip Enable 2 Power Supply CE2 VCC I/O0 - I/O7 GND CE1 OE CE2 VCC PRELIMINARY (March, 2001, Version 0.2) 2 AMIC Technology, Inc. A62S8308 Series Recommended DC Operating Conditions (TA = 0°C to + 70°C or -25°C to 85°C) Symbol VCC GND VIH VIL CL TTL Parameter Supply Voltage Ground Input High Voltage Input Low Voltage Output Load Output Load Min. 2.7 0 2.4 -0.3 Typ. 3.0 0 Max. 3.6 0 VCC + 0.3 +0.6 30 1 Unit V V V V pF - Absolute Maximum Ratings* VCC to GND . . . . . . . . . . . . . . . . . . . . . -0.5V to + 4.6V IN, IN/OUT Volt to GND . . . . . . . . . -0.5V to VCC + 0.5V Operating Temperature, Topr . . . . . . . . -25°C to + 85°C Storage Temperature, Tstg . .. . . . . . . . -55°C to + 125°C Power Dissipation, PT . . . . . . . . . . . . . . . . . . . . . . 0.7W Soldering Temp. & Time . . . . . . . . . . . . . 260°C, 10 sec *Comments Stresses ab...

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