Details

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BUY CY7C128A-55SC https://www.utsource.net/itm/p/12610273.html

Parameter	Value
Device	CY7C128A-55SC
Type	Static RAM (SRAM)
Organization	16K x 8
Supply Voltage (Vcc)	5.0V
Operating Temperature	-40掳C to +85掳C
Access Time	55 ns
Package	28-Pin SOIC (Small Outline Integrated Circuit)
Data Retention	10 years at 25掳C
Power Consumption	350 mW (Active)
Standby Current	10 渭A
Output Drive	24 mA per output
Input Clamping Voltage	0.3V to Vcc + 0.3V
Propagation Delay	10 ns (typical)
Write Cycle Time	55 ns
Read Cycle Time	55 ns
Address Lines	14
Data Lines	8
Control Lines	CE (Chip Enable), OE (Output Enable), WE (Write Enable)
Pins	28

Instructions for Use:

1. Power Supply:

   • Connect Vcc to +5.0V and GND to ground.
   • Ensure stable power supply to avoid data corruption.

2. Addressing:

   • Connect the 14 address lines (A0-A13) to the appropriate address bus.
   • Address lines should be stable before the rising edge of the clock signal.

3. Data Lines:

   • Connect the 8 data lines (D0-D7) to the data bus.
   • Data lines should be stable during read and write operations.

4. Control Signals:

   • CE (Chip Enable): Active low. When low, the device is enabled.
   • OE (Output Enable): Active low. When low, data is output from the memory.
   • WE (Write Enable): Active low. When low, data is written to the memory.

5. Timing:

   • Ensure that all control signals (CE, OE, WE) are stable before the access time (55 ns) is completed.
   • For read operations, the data will be valid on the data lines after the specified propagation delay (10 ns typical).

6. Handling:

   • Handle the device with care to avoid electrostatic discharge (ESD).
   • Store in a dry environment to prevent moisture damage.

7. Testing:

   • Before integrating into a system, test the device using a known good test pattern to ensure proper functionality.

8. Mounting:

   • Solder the device to the PCB following standard reflow soldering profiles.
   • Ensure proper thermal management if operating at high temperatures or under heavy load.

(For reference only)