RMQC4A1836DGBA_15 Datasheet, PDF (1/30 Pages) Renesas Technology Corp – 18-Mbit DDR™ II SRAM 2-word Burst

Datasheet
RMQC4A1836DGBA, RMQC4A1818DGBA
18-Mbit DDR™ II SRAM
2-word Burst
R10DS0248EJ0100
Rev.1.00
Jan. 13, 2015
Description
The RMQC4A1836DGBA is a 524,288-word by 36-bit and the RMQC4A1818DGBA is a 1,048,576-word by 18-bit
synchronous quad data rate static RAM fabricated with advanced CMOS technology using full CMOS six-transistor
memory cell. It integrates unique synchronous peripheral circuitry and a burst counter. All input registers are
controlled by an input clock pair (K and /K) and are latched on the positive edge of K and /K. These products are
suitable for applications which require synchronous operation, high speed, low voltage, high density and wide bit
configuration. These products are packaged in 165-pin plastic FBGA package.
Features
„ Power Supply
z 1.8 V for core (VDD), 1.4 V to VDD for I/O (V_DDQ)
„ Clock
z
z
z
z
z
Fast clock cycle time for high bandwidth
Two input clocks (K and /K) for precise DDR timing at clock rising edges only
Two input clocks for output data (C and /C) to minimize clock skew and flight time mismatches
Two output echo clocks (CQ and /CQ) simplify data capture in high-speed systems
Clock-stop capability with μs restart
„ I/O
z
z
z
z
z
Common data input/output bus
Pipelined double data rate operation
HSTL I/O
User programmable output impedance
PLL circuitry for wide output data valid window and future frequency scaling
„ Function
z Two-tick burst for low DDR transaction size
z Internally self-timed write control
z Simple control logic for easy depth expansion
z JTAG 1149.1 compatible test access port
„ Package
z 165 FBGA package (13 x 15 x 1.4 mm)
R10DS0248EJ0100 Rev.1.00
Jan. 13, 2015
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