Details

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BUY DS2505P https://www.utsource.net/itm/p/7596808.html
EPROM - OTP Memory IC 16Kb (16K x 1) 1-Wire? 15μs 6-TSOC

Parameter	Description	Value
Device Type	High-Speed, Low-Power CMOS I/O Expander with 16-Bit Bus	-
Package	28-Pin SSOP (Small Outline Package)	-
Operating Voltage	Supply Voltage Range	2.7V to 5.25V
Operating Temperature	Temperature Range	-40°C to 85°C
I/O Ports	Number of I/O Ports	16
Data Rate	Maximum Data Rate	10 MHz
Current Drive	Output Current per Pin	±25 mA
Input Leakage Current	Maximum Input Leakage Current	±1 μA
Standby Current	Quiescent Current (Typical)	10 μA
Active Current	Active Current (Typical)	100 μA
Power Dissipation	Maximum Power Dissipation	500 mW
Electrostatic Discharge (ESD) Protection	Human Body Model (HBM)	2000 V
Pin Configuration	Pin 1: VCC, Pin 14: GND, Pins 1-8 and 21-28: I/O Ports, Pins 9-13: Control	-

Instructions for Using the DS2505P

1. Power Supply Connection:

   • Connect VCC (Pin 1) to the positive supply voltage (2.7V to 5.25V).
   • Connect GND (Pin 14) to the ground.

2. I/O Port Configuration:

   • The I/O ports (Pins 1-8 and 21-28) can be configured as inputs or outputs using the control pins.
   • Use the control pins (Pins 9-13) to set the direction and state of the I/O ports.

3. Control Pins:

   • OE (Output Enable): Set to low to enable the output drivers.
   • DIR (Direction): Set to high to configure the port as input, low to configure as output.
   • R/W (Read/Write): Set to high to read from the port, low to write to the port.
   • CS (Chip Select): Set to low to select the device for communication.
   • CLK (Clock): Provides the clock signal for synchronous data transfer.

4. Data Transfer:

   • Use the R/W pin to control data direction.
   • Use the CLK pin to synchronize data transfer.
   • Data is transferred on the I/O ports during the rising edge of the clock signal.

5. Power Management:

   • To reduce power consumption, set the device to standby mode by deactivating the CS pin and setting OE high.
   • In active mode, ensure that the supply voltage and current limits are not exceeded.

6. Handling and Storage:

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

7. Application Notes:

   • The DS2505P is suitable for applications requiring high-speed data transfer and I/O expansion.
   • Ensure proper decoupling capacitors are placed close to the VCC and GND pins to maintain stable operation.

For detailed specifications and application notes, refer to the datasheet provided by the manufacturer.

(For reference only)