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Rev. 0.11b : 2012.06.05

Preliminary

Rev. 0.11b

2012.06.05

R1QBA44**RBG / R1QEA44**RBG Series (Preliminary)

Features

Power Supply

• 1.8 V for core (V

Clock

• Fast clock cycle time for high bandwidth

• Two input clocks (K and /K) for precise DDR timing at clock rising edges only

• Two output echo clocks (CQ and /CQ) simplify data capture in high-speed systems

• Clock-stop capability with s restart

I/O

• Common data input/output bus

• Pipelined double data rate operation

• HSTL I/O

• User programmable output impedance

• DLL/PLL circuitry for wide output data valid window and future frequency scaling

• Data valid pin (QVLD) to indicate valid data on the output

Function

• Two-tick burst for low DDR transaction size

• Internally self-timed write control

• Simple control logic for easy depth expansion

• JTAG 1149.1 compatible test access port

Package

• 165 FBGA package (15 x 17 x 1.4 mm)

Description

double 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.

# = H: Latency =2.0, w/o ODT

# = L: Latency =2.0, w/ ODT

R1QHA4436RBG / R1QHA4418RBG / R1QHA4409RBG

R1QLA4436RBG / R1QLA4418RBG / R1QLA4409RBG

144-Mbit DDRII+ SRAM

2-word Burst

Notes: 1. QDR RAMs and Quad Data Rate RAMs comprise a new family of products developed by Cypress

Semiconductor, IDT, Samsung, and Renesas Electronics Corp. (QDR Co-Development Team)

2. The specifications of this device are subject to change without notice. Please contact your nearest

Renesas Electronics Sales Office regarding specifications.

3. Refer to

for the latest and detailed information.

4. Descriptions about x9 parts in this datasheet are just for reference.

R10DS0189EJ0011

R10DS0189EJ0011