The µPD44164082 is a 2,097,152-word by 8-bit, the µPD44164182 is a 1,048,576-word by 18-bit and the µPD44164362 is a 524,288-word by 36-bit synchronous double data rate static RAM fabricated with advanced CMOS technology using full CMOS six-transistor memory cell. The µPD44164082, µPD44164182 and µPD44164362 integrates unique synchronous peripheral circuitr.
• 1.8 ± 0.1 V power supply and HSTL I/O
• DLL circuitry for wide output data valid window and future frequency scaling
• Pipelined double data rate operation
• Common data input/output bus
• Two-tick burst for low DDR transaction size
• Two input clocks (K and /K) for precise DDR timing at clock rising edges only
• Two output clocks (C and /C) for precise flight time and clock skew matching-clock and data delivered together to receiving device
• Internally self-timed write control
• Clock-stop capability with µs restart
• User programmable impedance output
• Fast clock cycle time : 4.0 ns (250.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | UPD44164084 |
NEC |
(UPD44164084/184/364) 18M-BIT DDRII SRAM 4-WORD BURST OPERATION | |
2 | UPD44164085 |
NEC |
(UPD44164085/185/365) 18M-BIT DDRII SRAM SEPARATE I/O 2-WORD BURST OPERATION | |
3 | UPD44164182 |
NEC |
(UPD44164082/182/362) 18M-BIT DDRII SRAM 2-WORD BURST OPERATION | |
4 | UPD44164184 |
NEC |
(UPD44164084/184/364) 18M-BIT DDRII SRAM 4-WORD BURST OPERATION | |
5 | UPD44164185 |
NEC |
(UPD44164085/185/365) 18M-BIT DDRII SRAM SEPARATE I/O 2-WORD BURST OPERATION | |
6 | UPD44164362 |
NEC |
(UPD44164082/182/362) 18M-BIT DDRII SRAM 2-WORD BURST OPERATION | |
7 | UPD44164364 |
NEC |
(UPD44164084/184/364) 18M-BIT DDRII SRAM 4-WORD BURST OPERATION | |
8 | UPD44164365 |
NEC |
(UPD44164085/185/365) 18M-BIT DDRII SRAM SEPARATE I/O 2-WORD BURST OPERATION | |
9 | UPD4416001 |
NEC |
16M-BIT CMOS FAST SRAM 16M-WORD BY 1-BIT | |
10 | UPD4416004 |
NEC |
16M-BIT CMOS FAST SRAM 4M-WORD BY 4-BIT | |
11 | UPD4416008 |
NEC |
16M-BIT CMOS FAST SRAM 2M-WORD BY 8-BIT | |
12 | UPD4416016 |
NEC |
16M-BIT CMOS FAST SRAM 1M-WORD BY 16-BIT |