18-Mbit Density (512 Kbit x 36)
167-MHz Clock for high bandwidth
4-Word Burst for reducing address bus frequency
Double Data Rate (DDR) interfaces (data transferred at
333 MHz @ 167 MHz)
Two input clocks (K and K) for precise DDR timing
SR
CY7C1321KV18- 18-Mbit DDR II SRAM Four-Word Burst Architecture
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CY7C1323BV25
18-Mbit 4-Word Burst SRAM with DDR-I Architecture
Features
Functional Description
• 18-Mbit Density (512 Kbit x 36) • 167-MHz Clock for high bandwidth • 4-Word Burst for reducing address bus frequency • Double Data Rate (DDR) interfaces (data transferred at
333 MHz @ 167 MHz) • Two input clocks (K and K) for precise DDR timing –
SRAM uses rising edges only • Two input clocks for output data (C and C) to minimize
clock-skew and flight-time mismatches. • Separate Port Selects for depth expansion • Synchronous internally self-timed writes • 2.5V core power supply with HSTL Inputs and Outputs • Available in 165-ball FBGA package (13 x 15 x 1.4 mm) • Variable drive HSTL output buffers • Expanded HSTL output voltage (1.4V–1.9V) • JTAG 1149.