PIC17C42AT-25/P View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC17C42AT-25/P

High-Performance 8-Bit CMOS EPROM/ROM Microcontroller

Microchip Technology 

PIC17C4X

Applicable Devices 42 R42 42A 43 R43 44

17.2 DC CHARACTERISTICS:

PIC17C42-16 (Commercial, Industrial)

PIC17C42-25 (Commercial, Industrial)

Standard Operating Conditions (unless otherwise stated)

Operating temperature

DC CHARACTERISTICS

-40˚C ≤ TA ≤ +85˚C for industrial and

0˚C ≤ TA ≤ +70˚C for commercial

Operating voltage VDD range as described in Section 17.1

Parameter

No. Sym

Characteristic

Min Typ† Max Units

Conditions

D030

D031

Input Low Voltage

VIL I/O ports

with TTL buffer

VSS

with Schmitt Trigger buffer

VSS

–

0.8 V

– 0.2VDD V

D032

D033

D040

D041

D042

D043

D050

D060

MCLR, OSC1 (in EC and RC

Vss

– 0.2VDD V Note1

mode)

OSC1 (in XT, and LF mode)

– 0.5VDD –

V

Input High Voltage

VIH I/O ports

–

with TTL buffer

2.0

–

VDD V

with Schmitt Trigger buffer 0.8VDD

–

VDD V

MCLR

0.8VDD

–

VDD V Note1

OSC1 (XT, and LF mode)

– 0.5VDD –

V

VHYS Hysteresis of

0.15VDD* –

–

V

Schmitt Trigger inputs

Input Leakage Current

(Notes 2, 3)

IIL I/O ports (except RA2, RA3)

–

–

±1 µA Vss ≤ VPIN ≤ VDD,

I/O Pin at hi-impedance

PORTB weak pull-ups dis-

abled

D061

MCLR

–

–

±2 µA VPIN = Vss or VPIN = VDD

D062

RA2, RA3

±2 µA Vss ≤ VRA2, VRA3 ≤ 12V

D063

OSC1, TEST

–

–

±1 µA Vss ≤ VPIN ≤ VDD

D064

MCLR

–

–

10 µA VMCLR = VPP = 12V

(when not programming)

D070

IPURB PORTB weak pull-up current

60

200 400 µA VPIN = VSS, RBPU = 0

*

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.

‡ These parameters are for design guidance only and are not tested, nor characterized.

†† Design guidance to attain the AC timing specifications. These loads are not tested.

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

PIC17CXX devices 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 coming out of the pin.

4: These specifications are for the programming of the on-chip program memory EPROM through the use of the

table write instructions. The complete programming specifications can be found in: PIC17CXX Programming

Specifications (Literature number DS30139).

5: The MCLR/Vpp pin may be kept in this range at times other than programming, but this is not recommended.

6: For TTL buffers, the better of the two specifications may be used.

DS30412C-page 150

© 1996 Microchip Technology Inc.

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