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K7K1618U2C Datasheet(PDF) 3 Page - Samsung semiconductor |
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K7K1618U2C Datasheet(HTML) 3 Page - Samsung semiconductor |
3 / 19 page 512Kx36 & 1Mx18 DDRII+ CIO b2 SRAM K7K1636U2C K7K1618U2C - 3 - Rev. 1.1 August 2010 512Kx36-bit, 1Mx18-bit DDRII CIO b2 SRAM FEATURES FUNCTIONAL BLOCK DIAGRAM • 1.8V+0.1V/-0.1V Power Supply. • DLL circuitry for wide output data valid window and future freg- uency scaling. • I/O Supply Voltage 1.5V+0.1V/-0.1V • Pipelined, double-data rate operation. • Common data input/output bus . • HSTL I/O • Full data coherency, providing most current data. • Synchronous pipeline read with self timed late write. • Read latency : 2.5 clock cycles • Registered address, control and data input/output. • DDR(Double Data Rate) Interface on read and write ports. • Fixed 2-bit burst for both read and write operation. • Clock-stop supports to reduce current. • Two input clocks(K and K) for accurate DDR timing at clock rising edges only. • Two echo clocks (CQ and CQ) to enhance output data traceability. • Data Valid pin(QVLD) supported • Single address bus. • Byte write (x18, x36) function. • Simple depth expansion with no data contention. • Programmable output impedance(ZQ). • JTAG 1149.1 compatible test access port. • 165FBGA(11x15 ball aray FBGA) with body size of 15x17mm LD ADDRESS R/W Doff DATA REG CLK GEN CTRL LOGIC 512Kx36 (1Mx18) MEMORY ARRAY WRITE DRIVER K K BWX 4(or 2) DQ SELECT OUTPUT CONTROL Notes: 1. Numbers in ( ) are for x18 device 18 18 (or 19) 36 (or 18) 36 72 (Echo Clock out) CQ, CQ 36 (or 18) DDR SRAM and Double Data Rate comprise a new family of products developed by Cypress, Renesas, IDT, NEC and Samsung technology. (or 19) (or 18) (or 36) 36 (or 18) * -F(E)C(I) F(E) [Package type] : E-Pb Free, F-Pb C(I) [Operating Temperature] : C-Commercial, I-Industrial Organiza- tion Part Number Cycle Time Access Time Unit X36 K7K1636U2C-F(E)C(I)45 2.22 0.45 ns K7K1636U2C-F(E)C(I)40 2.5 0.45 ns K7K1636U2C-F(E)C(I)33 3.0 0.45 ns X18 K7K1618U2C-F(E)C(I)45 2.22 0.45 ns K7K1618U2C-F(E)C(I)40 2.5 0.45 ns K7K1618U2C-F(E)C(I)33 3.0 0.45 ns ADD REG QVLD |
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