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CY7C187-25PC

Specifications

SKU: 11247387

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Parameter Description Value
Part Number Component Identifier CY7C187-25PC
Type Device Type SRAM (Static Random Access Memory)
Density Memory Size 64K x 8 bits (512 Kbits)
Access Time Data Access Speed 25 ns
Supply Voltage Operating Voltage Range 4.5 V to 5.5 V
Current Consumption Active Current 20 mA (typical)
Standby Current Standby Current 10 μA (maximum)
Operating Temperature Temperature Range -40°C to +85°C
Package Physical Package Type 28-Pin Plastic DIP (Dual In-line Package)
Pin Configuration Pin Count 28 pins
Organization Memory Organization 64K x 8
Data Retention Data Retention Time 10 years (at 25°C)
Write Cycle Write Cycle Time 25 ns (minimum)
Read Cycle Read Cycle Time 25 ns (minimum)
Output Drive Output Drive Capability 12 mA (source/sink)
Input Clamping Voltage Input Clamping Voltage 0.3 V to 5.5 V
Storage Temperature Storage Temperature Range -65°C to +150°C

Instructions for Use

  1. Power Supply:

    • Ensure the supply voltage is within the specified range (4.5 V to 5.5 V).
    • Use a stable power source to avoid voltage fluctuations that could affect memory performance.
  2. Signal Timing:

    • Adhere to the specified access time (25 ns) to ensure reliable data read and write operations.
    • Ensure all control signals (CE, OE, WE) are properly synchronized with the clock or system timing.
  3. Addressing:

    • Connect the address lines (A0-A15) to the appropriate address bus to select the desired memory location.
    • Ensure address lines are stable during read and write cycles.
  4. Data Lines:

    • Connect the data lines (D0-D7) to the data bus for data transfer.
    • Ensure data lines are stable during read and write cycles.
  5. Control Signals:

    • Chip Enable (CE): Low to enable the chip.
    • Output Enable (OE): Low to enable data output.
    • Write Enable (WE): Low to enable data write.
    • Ensure these signals are used correctly to avoid unintended data corruption.
  6. Temperature Considerations:

    • Operate the device within the specified temperature range (-40°C to +85°C) to ensure reliable operation.
    • Store the device within the storage temperature range (-65°C to +150°C).
  7. Handling:

    • Handle the device with care to avoid static discharge and physical damage.
    • Use proper ESD (Electrostatic Discharge) protection when handling the device.
  8. Mounting:

    • Ensure the device is securely mounted on the PCB (Printed Circuit Board) to prevent mechanical stress.
    • Follow recommended soldering profiles and reflow temperatures for the 28-Pin DIP package.
  9. Testing:

    • Perform initial testing under controlled conditions to verify correct operation.
    • Use diagnostic tools to monitor and validate memory performance.
  10. Documentation:

    • Refer to the datasheet and application notes provided by Cypress Semiconductor for detailed information and specific guidelines.
(For reference only)

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