R1Q4A7236ABB_15 Datasheet, PDF (1/36 Pages) Renesas Technology Corp – 72-Mbit DDRII SRAM 2-word Burst

R1Q4A7236ABB / R1Q4A7218ABB Series
R1Q4A7236ABB
R1Q4A7218ABB
72-Mbit DDRII SRAM
2-word Burst
R10DS0166EJ0011
Rev. 0.11
2013.01.15
Description
The R1Q4A7236 is a 2,097,152-word by 36-bit and the R1Q4A7218 is a 4,194,304-word by 18-bit synchronous
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.
Features
႑ Power Supply
• 1.8 V for core (V_DD), 1.4 V to V_DD for I/O (V_DDQ)
႑ Clock
• 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
႑ 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
႑ 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
႑ Package
• 165 FBGA package (13 x 15 x 1.4 mm)
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
"http://www.renesas.com/products/memory/fast_sram/qdr_sram/index.jsp"
for the latest and detailed information.
4. Descriptions about x9 parts in this datasheet are just for reference.
Rev. 0.11 : 2013.01.15
R10DS0166EJ0011