PIC16F87T-I/ML【PDF 121/200 页】IC MCU FLASH 4KX14 EEPROM 28QFN

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Sheet目录3882

117页 118页 119页 120页 [121页]122页 123页 124页 125页

207

8008H–AVR–04/11

ATtiny48/88

Notes:

1. Typical values at 25

°C.

2. “Max” means the highest value where the pin is guaranteed to be read as low.

3. These parameters are not tested in production.

4. “Min” means the lowest value where the pin is guaranteed to be read as high.

5. Although each I/O port can sink more than the test conditions (10 mA at V

CC = 5V, 5 mA at VCC = 3V, 2 mA at VCC = 1.8V)

under steady state conditions (non-transient), the following must be observed:

The sum of all I

OL, for ports A0, A3, B0 – B7, C7, D5 – D7 should not exceed 100 mA.

The sum of all I

OL, for ports A1 – A2, C0 – C6, D0 – D4 should not exceed 100 mA.

If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater

than the listed test condition.

6. The RESET pin must tolerate high voltages when entering and operating in programming modes and, as a consequence,

has a weak drive strength as compared to regular I/O pins. See Figure 23-34, Figure 23-35, Figure 23-36, Figure 23-37, Fig-

ure 23-38 and Figure 23-39 (starting on page 236).

7. High Sink I/O pins are PD0, PD1, PD2 and PD3.

8. Although each I/O port can source more than the test conditions (10 mA at VCC = 5V, 5mA at VCC = 3V, 2 mA at VCC = 1.8V)

under steady state conditions (non-transient), the following must be observed:

The sum of all I

OH, for ports A2 – A3, B0 – B7, C6, D0 – D7 should not exceed 100 mA.

The sum of all IOH, for ports A0 – A1, C0 – C5, C7 should not exceed 100 mA.

If II

OH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current

greater than the listed test condition.

9. These are test limits, which account for leakage currents of the test environment. Actual device leakage currents are lower.

10. Values are with external clock using methods described in “Minimizing Power Consumption” on page 38. Power reduction is

enabled (PRR = 0xFF) and there is no I/O drive.

11. Measured with Brown-Out Detection (BOD) disabled.

ILIL

Input Leakage

Current I/O Pin

VCC = 5.5V, pin low

(absolute value)

< 0.05

1 (9)

ILIH

Input Leakage

Current I/O Pin

VCC = 5.5V, pin high

(absolute value)

< 0.05

1 (9)

RPU

Pull-up Resistor, I/O Pin

VCC = 5.5V, input low

Pull-up Resistor, Reset Pin

VCC = 5.5V, input low

ICC

Supply Current,

Active Mode (10)

f = 1MHz, VCC = 2V

0.2

0.4

f = 4MHz, VCC = 3V

1.4

2.5

f = 8MHz, VCC = 5V

4.5

Supply Current,

Idle Mode

f = 1MHz, VCC = 2V

0.03

0.1

f = 4MHz, VCC = 3V

0.25

0.6

f = 8MHz, VCC = 5V

Supply Current,

Power-down Mode (11)

WDT enabled, VCC = 3V

WDT disabled, VCC = 3V

< 0.2

A = -40°C to +85°C, VCC = 1.8V to 5.5V (unless otherwise noted) (Continued)

Symbol

Parameter

Condition

Min

Typ (1)

Max

Units

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