DS80C320 datasheet(28/42 Pages) DALLAS

номер детали	DS80C320

подробное описание детали	High-Speed/Low-Power Micro

PDF	42 Pages

Scroll/Zoom	100%

производитель	DALLAS [Dallas Semiconductor]

домашняя страница	https://www.maximintegrated.com/en.html

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DS80C320/DS80C323

28 of 42

5. When addressing external memory.

6. RST= VCC. This condition mimics operation of pins in I/O mode.

7. During a 0 to 1 transition, a one-shot drives the ports hard for two clock cycles. This measurement

reflects port in transition mode.

8. Ports 1, 2, and 3 source transition current when being pulled down externally. It reaches its maximum

at approximately 2V.

9. VIN between ground and VCC - 0.3V. Not a high impedance input. This port is a weak address latch

because Port 0 is dedicated as an address bus on the DS80C323. Peak current occurs near the input

transition point of the latch, approximately 2V.

10. Over the industrial temperature range, this specification has a maximum value of 200 µA.

11. This is the current from an external circuit to hold a logic low level on an I/O pin while the

corresponding port latch bit is set to 1. This is only the current required to hold the low level;

transitions from 1 to 0 on an I/O pin will also have to overcome the transition current.

12. Device operating range is 2.7V to 5.5V, however device is tested to 2.5V to ensure proper operation

at minimum VRST .

DS80C320 датащи(PDF) 28 Page - Dallas Semiconductor