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Sheet目录3889

66页 67页 68页 69页 [70页]71页 72页 73页 74页

2001 Microchip Technology Inc.

DS30292C-page 159

PIC16F87X

15.4

DC Characteristics: PIC16F873/874/876/877-04 (Extended)

PIC16F873/874/876/877-10 (Extended)

DC CHARACTERISTICS

Standard Operating Conditions (unless otherwise stated)

Operating temperature -40°C

≤ TA ≤ +125°C

Operating voltage VDD range as described in DC specification

(Section 15.1)

Param

No.

Sym

Characteristic

Min

Typ

Max

Units

Conditions

VIL

Input Low Voltage

I/O ports

D030

with TTL buffer

Vss

— 0.15VDD

For entire VDD range

D030A

Vss

—

0.8V

4.5V

≤ VDD ≤ 5.5V

D031

with Schmitt Trigger buffer

Vss

—

0.2VDD

D032

MCLR, OSC1 (in RC mode)

VSS

—

0.2VDD

D033

OSC1 (in XT, HS and LP)

VSS

—

0.3VDD

(Note 1)

Ports RC3 and RC4

D034

with Schmitt Trigger buffer

Vss

—

0.3VDD

For entire VDD range

D034A

with SMBus

-0.5

—

0.6

for VDD = 4.5 to 5.5V

VIH

Input High Voltage

I/O ports

—

D040

with TTL buffer

2.0

—

VDD

V4.5V

≤ VDD ≤ 5.5V

D040A

0.25VDD

+ 0.8V

—

VDD

For entire VDD range

D041

with Schmitt Trigger buffer

0.8VDD

—

VDD

For entire VDD range

D042

MCLR

0.8VDD

—

VDD

D042A

OSC1 (XT, HS and LP)

0.7VDD

—

VDD

(Note 1)

D043

OSC1 (in RC mode)

0.9VDD

—

VDD

Ports RC3 and RC4

D044

with Schmitt Trigger buffer

0.7VDD

—

VDD

For entire VDD range

D044A

with SMBus

1.4

—

5.5

for VDD = 4.5 to 5.5V

D070A

IPURB PORTB Weak Pull-up Current

250

400

AVDD = 5V, VPIN = VSS,

IIL

Input Leakage Current(2, 3)

D060

I/O ports

±1

AVss ≤ VPIN ≤ VDD,

Pin at hi-impedance

D061

MCLR, RA4/T0CKI

±5

AVss ≤ VPIN ≤ VDD

D063

OSC1

±5

AVss ≤ VPIN ≤ VDD, XT, HS

and LP osc configuration

These parameters are characterized but not tested.

Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance

only and are not tested.

Note 1: In RC oscillator configuration, the OSC1/CLKIN pin is a Schmitt Trigger input. It is not recommended that the

PIC16F87X be driven with external clock in RC mode.

2: The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specified

levels represent normal operating conditions. Higher leakage current may be measured at different input

voltages.

3: Negative current is defined as current sourced by the pin.

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