PIC16F84AT-20SLASHSSROM datasheet(78/88 Pages) MICROCHIP

78 / 88 page

PIC16F84A

DS35007B-page 76

APPENDIX B:

CONVERSION CONSIDERATIONS

Considerations for converting from one PIC16X8X

device to another are listed in Table 1.

TABLE 1:

CONVERSION CONSIDERATIONS - PIC16C84, PIC16F83/F84, PIC16CR83/CR84,

PIC16F84A

Difference

PIC16C84

PIC16F83/F84

PIC16CR83/

CR84

PIC16F84A

Program Memory Size

1K x 14

512 x 14 / 1K x 14

1K x 14

Data Memory Size

36 x 8

36 x 8 / 68 x 8

68 x 8

Voltage Range

2.0V - 6.0V

(-40

°C to +85°C)

2.0V - 6.0V

(-40

°C to +85°C)

2.0V - 6.0V

(-40

°C to +85°C)

2.0V - 5.5V

(-40

°C to +125°C)

Maximum Operating Fre-

quency

10 MHz

20 MHz

Supply Current (IDD).

See parameter # D014 in

the electrical specs for

more detail.

IDD (typ) = 60

µA

IDD (max) = 400

µA

(LP osc, FOSC = 32 kHz,

VDD = 2.0V,

WDT disabled)

IDD (typ) = 15

µA

IDD (max) = 45

µA

(LP osc, FOSC = 32 kHz,

VDD = 2.0V,

WDT disabled)

IDD (typ) = 15

µA

IDD (max) = 45

µA

(LP osc, FOSC = 32 kHz,

VDD = 2.0V,

WDT disabled)

IDD (typ) = 15

µA

IDD (max) = 45

µA

(LP osc, FOSC = 32 kHz,

VDD = 2.0V,

WDT disabled)

Power-down Current

(IPD). See parameters #

D020, D021, and D021A

in the electrical specs for

more detail.

IPD (typ) = 26

µA

IPD (max) = 100

µA

(VDD = 2.0V,

WDT disabled, industrial)

IPD (typ) = 0.4

µA

IPD (max) = 9

µA

(VDD = 2.0V,

WDT disabled, industrial)

IPD (typ) = 0.4

µA

IPD (max) = 6

µA

(VDD = 2.0V,

WDT disabled, industrial)

IPD (typ) = 0.4

µA

IPD (max) = 1

µA

(VDD = 2.0V,

WDT disabled, industrial)

Input Low Voltage (VIL).

See parameters # D032

and D034 in the electrical

specs for more detail.

VIL (max) = 0.2VDD

(OSC1, RC mode)

VIL (max) = 0.1VDD

(OSC1, RC mode)

VIL (max) = 0.1VDD

(OSC1, RC mode)

VIL (max) = 0.1VDD

(OSC1, RC mode)

Input High Voltage (VIH).

See parameter # D040 in

the electrical specs for

more detail.

VIH (min) = 0.36VDD

(I/O Ports with TTL,

4.5V

≤ VDD ≤ 5.5V)

VIH (min) = 2.4V

(I/O Ports with TTL,

4.5V

≤ VDD ≤ 5.5V)

VIH (min) = 2.4V

(I/O Ports with TTL,

4.5V

≤ VDD ≤ 5.5V)

VIH (min) = 2.4V

(I/O Ports with TTL,

4.5V

≤ VDD ≤ 5.5V)

Data EEPROM Memory

Erase/Write cycle time

(TDEW). See parameter #

D122 in the electrical

specs for more detail.

TDEW (typ) = 10 ms

TDEW (max) = 20 ms

TDEW (typ) = 10 ms

TDEW (max) = 20 ms

TDEW (typ) = 10 ms

TDEW (max) = 20 ms

TDEW (typ) = 4 ms

TDEW (max) = 8 ms

Port Output Rise/Fall

time (TioR, TioF). See

parameters #20, 20A,

21, and 21A in the elec-

trical specs for more

detail.

TioR, TioF (max) = 25 ns

(C84)

TioR, TioF (max) = 60 ns

(LC84)

TioR, TioF (max) = 35 ns

(C84)

TioR, TioF (max) = 70 ns

(LC84)

TioR, TioF (max) = 35 ns

(C84)

TioR, TioF (max) = 70 ns

(LC84)

TioR, TioF (max) = 35 ns

(C84)

TioR, TioF (max) = 70 ns

(LC84)

MCLR on-chip filter. See

parameter #30 in the

electrical specs for more

detail.

Yes

PORTA and crystal oscil-

lator values less than

500 kHz

For crystal oscillator con-

figurations operating

below 500 kHz, the device

may generate a spurious

internal Q-clock when

PORTA<0> switches

state.

N/A

RB0/INT pin

TTL

TTL/ST*

(*Schmitt Trigger)

TTL/ST*

(*Schmitt Trigger)

TTL/ST*

(*Schmitt Trigger)

PIC16F84AT-20/SSROM Datasheet(PDF) 78 Page - Microchip Technology

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