UPD44164185 Overview
The µPD44164085, µPD44164185 and µPD44164365 integrates unique synchronous peripheral circuitry and a burst counter. All input registers controlled by an input clock pair (K and /K) are latched on the positive edge of K and /K. These products are suitable for application which require synchronous operation, high speed, low voltage, high density and wide bit configuration.
UPD44164185 Key Features
- 1.8 ± 0.1 V power supply and HSTL I/O
- DLL circuitry for wide output data valid window and future frequency scaling
- Separate independent read and write data ports
- DDR read or write operation initiated each cycle
- Pipelined double data rate operation
- Separate 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 receiv
- Internally self-timed write control