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Revision 2.4 April 2002 1 Ultra Low Power/Voltage CMOS SRAM 256K x 16 or 512K x 8 bit switchable The BS616UV4020 is a high performance, ultra low power CMOS Static Random Access Memory organized as 262,144 words by 16 bits or 524,288 bytes by 8 bits selectable by CIO pin and operates from a wide range of 1.8V to 3.6V supply voltage. Advanced CMOS technology and circuit techniques provide both high speed and low power features with a typical CMOS standby current of 0.2uA and maximum access time of 70/100ns in 2V operation. Easy memory expansion is provided by active HIGH chip enable2(CE2), active LOW chip enable1(CE1), active LOW output enable(OE) and three-state output drivers. The BS616UV4020 has an automatic power down feature, reducing the power consumption significantly when chip is deselected. The BS616UV4020 is available in DICE form and 48-pin BGA type. • Ultra low operation voltage : 1.8 ~ 3.6V • Ultra low power consumption : Vcc = 2.0V C-grade: 15mA (Max.) operating current I-grade : 20mA (Max.) operating current 0.2uA (Typ.) CMOS standby current Vcc = 3.0V C-grade: 20mA (Max.) operating current I-grade : 25mA (Max.) operating current 0.25uA (Typ.) CMOS standby current • High speed access time : -70 70ns (Max.) at Vcc=2.0V -10 100ns (Max.) at Vcc=2.0V •Automatic power down when chip is deselected • Three state outputs and TTL compatible • Fully static operation • Data retention supply voltage as low as 1.5V • Easy expansion with CE1, CE2 and OE options • I/O Configuration x8/x16 selectable by CIO, LB and UB pin DESCRIPTION FEATURES BLOCK DIAGRAM PRODUCT FAMILY Brilliance Semiconductor Inc. reserves the right to modify document contents without notice. BS616UV4020 Row Decoder Memory Array 2048 x 2048 Column I/O Write Driver Sense Amp Column Decoder Data Buffer Output A1 A2 A3 Data Input Buffer Control Vss Vdd OE WE D0 A8 A12 16(8) 16(8) 16(8) 16(8) CE1 D15 A11 A7 A17 A13 14(16) 128(256) 2048 2048 22 A10 A9 A0 A6 A4 A16 A14 Address Input Buffer A5 Address Input Buffer . . . . UB . . . . LB A15 CIO CE2 (SAE) PIN CONFIGURATION R0201-BS616UV4020 POWER DISSIPATION SPEED (ns) STANDBY (I CCSB1 , Max) Operating (I CC , Max) PRODUCT FAMILY OPERATING TEMPERATURE Vcc RANGE Vcc=2VVcc=3VVcc=2VVcc=3V PKG TYPE BS616UV4020DCDICE BS616UV4020BC +0 O C to +70 O C1.8V ~ 3.6V70 / 1001uA1.5uA15mA20mA DICE BGA-48-0810 BS616UV4020DI BS616UV4020BI -40 O C to +85 O C1.8V ~ 3.6V70 / 1002uA3uA20mA25mA BGA-48-0810 BSI Vcc=2V Vcc=3V