CY7C1386S
CY7C1386S is 18-Mbit (512 K x 36) Pipelined DCD Sync SRAM manufactured by Cypress.
18-Mbit (512 K × 36) Pipelined DCD Sync SRAM
18-Mbit (512 K × 36) Pipelined DCD Sync SRAM
Features
- Supports bus operation up to 167 MHz
- Available speed grade is 167 MHz
- Registered inputs and outputs for pipelined operation
- Optimal for performance (double-cycle deselect)
- Depth expansion without wait state
- 3.3 V core power supply (VDD)
- 2.5 V or 3.3 V I/O power supply (VDDQ)
- Fast clock-to-output times
- 3.4 ns (for 167 MHz device)
- Provides high-performance 3-1-1-1 access rate
- User selectable burst counter supporting Intel Pentium interleaved or linear burst sequences
- Separate processor and controller address strobes
- Synchronous self timed writes
- Asynchronous output enable
- Available in JEDEC-standard Pb-free 100-pin TQFP
- ZZ sleep mode option
Functional Description
The CY7C1386S SRAM integrates 512 K × 36 SRAM cells with advanced synchronous peripheral circuitry and a two-bit counter for internal burst operation. All synchronous inputs are gated by registers controlled by a positive edge triggered clock input (CLK). The synchronous inputs include all addresses, all data inputs, address-pipelining chip enable (CE1), depth expansion chip enables (CE2 and CE3), burst control inputs (ADSC, ADSP, and ADV), write enables (BWX, and BWE), and global write (GW). Asynchronous inputs include the output enable (OE) and the ZZ pin.
Addresses and chip enables are registered at rising edge of clock when either address strobe processor (ADSP) or address strobe controller (ADSC) are active. Subsequent burst addresses can be internally generated as controlled by the advance pin (ADV).
Address, data inputs, and write controls are registered on-chip to initiate a self timed write cycle.This part supports byte write operations (see Pin Configurations on page 4 and Truth Table on page 8 for further details). Write cycles can be one to four bytes wide as controlled by the byte write control inputs. GW active LOW writes all bytes. This device...