Ss = =a" CYPRESS SRECININA SY fax id: 1109 CY7C1339 128K x 32 Synchronous-Pipelined Cache RAM Features * * . e . . . . * * Low (1.65 mW) standby power (f=0, L version) Supports 100-MHz bus for Pentium and PowerPC operations with zero wait states Fully registered inputs and outputs for pipelined operation 128K x 36 common I/O architecture Single 3.3V power supply Fast clock-to-output times 3.5 ns (for 166-MHz device) 4.0 ns (for 133-MHz device} 4.5 ns (for 117-MHz device) 5.5 ns (for 100-MHz device) User-selectable burst counter supporting Intel Pentium interleaved or linear burst sequences Separate processor and controller address strobes Synchronous self-timed writes Asynchronous output enable JEDEC-standard 100 TQFP pinout ZZ Sleep Mode option and Stop Clock option Logic Block Diagram CLK BURST COUNTER ADDRESS REGISTER D_ ENABLE CE REGISTER CLK Intel and Pentium are registered trademarks of Intel Corporation. PowerP6 is a trademark of IBM Corporation. Cypress Semiconductor Corporation + 3901 North First Street + Functional Description The CY7C1339 is a 3.3V 128K by 32 synchronous-pipelined cache SRAM designed to support zero wait state secondary cache with minimal glue logic. All synchronous inputs pass through input registers controlled by the rising edge of the clock. All data outputs pass through output registers controlled by the rising edge of the clock. Max- imum access delay from the clock rise is 3.5 ns (166-MHz device). A 2-bit on-chip wraparound burst counter captures the first address in a burst sequence and automatically increments the address for the rest of the burst access. The GY7C1339 supports either the interleaved burst se- quence used by the Intel Pentium processor or a linear burst sequence used by processors such as the PowerPC. The burst sequence is selected through the MODE pin. Accesses can be initiated by asserting either the processor address strobe (ADSP) or the controller address strobe (ADSC) at clock rise. Address advancement through the burst sequence is con- trolled by the ADV input. Byte write operations are qualified with the four Byte Write Select (BW/o.4)) inputs. A Global Write Enable (GW) overrides the byte write inputs and writes data to all four bytes. All writes are conducted with on-chip synchronous self-timed write cir- cuitry. Three synchronous chip selects (CE,, CEs, GE3) and an asyn- chrenous output enable (OE) provide for easy bank selection and output three-state control. In order to provide proper data during depth expansion, OE is masked during the first clock of a read cycle when emerging from a deselected state. 128K x 32 MEMORY ARRAY OUTPUT. REGISTERS INPUT REGISTERS CLK CLK SanJose + GCA 95134 + 408-943-2600 Auaust 24, 1998Se 200 mA Ambient Temperature with Operating Range Power Applied... see seenesane 00S to +125C - Supply Voltage on Vop Relative to GND.........-0.5V to +4.6V Range Temperature! ] Vop DS Voltage Applied to Outputs in High Z Statell.,......... 0.5V to Vppq + 0.5V Com'l OG to +70C 3.3V S%/+10% DC Input VoltEgC creer, 0-5V to Vppg + 0.5V Note: 4. When awrite cycle is detected, all Os are three-stated, even during byte writes. 5. Minimum voltage equals -2.0V for pulse durations of less than 20 ns. 6. T,is the instant on case temperature.Se Vpp- 0.2V 3 mA standby current loezz (L Version) Snooze mode ZZ >Vpop- 0.2V 800 LA standby current tzzs Device operationto | ZZ > Vpp 0.2V Zteve ns ZZ tzz7REC ZZ recovery time 27 <0.2V 2tove nsSe