
PIC16F946
DS41265A-page 236
Preliminary
2005 Microchip Technology Inc.
19.4
DC Characteristics: PIC16F946-I (Industrial), PIC16F946-E (Extended)
DC CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C
≤ TA ≤ +85°C for industrial
-40°C
≤ TA ≤ +125°C for extended
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
VIL
Input Low Voltage
I/O port:
D030
with TTL buffer
VSS
—0.8
V
4.5V
≤ VDD ≤ 5.5V
D030A
VSS
—0.15 VDD
V
Otherwise
D031
with Schmitt Trigger buffer
VSS
—
0.2 VDD
V
Entire range
D032
MCLR, OSC1 (RC mode)
VSS
—
0.2 VDD
V
D033
OSC1 (XT and LP modes)(1)
VSS
—0.3
V
D033A
OSC1 (HS mode)(1)
VSS
—
0.3 VDD
V
D034
I2C mode
VSS
—0.3VDD
VEntire VDD Range
VIH
Input High Voltage
I/O port:
—
D040
D040A
with TTL buffer
2.0
(0.25 VDD +
0.8)
—
VDD
V
4.5V
≤ VDD ≤ 5.5V
Otherwise
D041
with Schmitt Trigger buffer
0.8 VDD
—VDD
V
Entire range
D042
MCLR
0.8 VDD
—VDD
V
D043
OSC1 (XT and LP modes)
1.6
—
VDD
V
(Note 1)
D043A
OSC1 (HS mode)
0.7 VDD
—VDD
V
(Note 1)
D043B
OSC1 (RC mode)
0.9 VDD
—VDD
V
D044
I2C mode
0.7VDD
—VDD
VEntire VDD Range
D070
IPUR
PORTB Weak Pull-up Current
50*
250
400*
μAVDD = 5.0V, VPIN = VSS
IIL
Input Leakage Current(2)
D060
I/O port
—
± 0.1
± 1
μAVSS ≤ VPIN ≤ VDD,
Pin at high-impedance
D061
MCLR(3)
—
± 0.1
± 5
μAVSS ≤ VPIN ≤ VDD
D063
OSC1
—
± 0.1
± 5
μAVSS ≤ VPIN ≤ VDD, XT, HS and
LP OSC configuration
VOL
Output Low Voltage
D080
I/O port
—
0.6
V
IOL = 8.5 mA, VDD = 4.5V (Ind.)
D083
OSC2/CLKO (RC mode)
—
0.6
V
IOL = 1.6 mA, VDD = 4.5V (Ind.)
IOL = 1.2 mA, VDD = 4.5V (Ext.)
VOH
Output High Voltage
D090
I/O port
VDD – 0.7
—
V
IOH = -3.0 mA, VDD = 4.5V (Ind.)
D092
OSC2/CLKO (RC mode)
VDD – 0.7
—
V
IOH = -1.3 mA, VDD = 4.5V (Ind.)
IOH = -1.0 mA, VDD = 4.5V (Ext.)
*
These parameters are characterized but not tested.
Data in ‘Typ’ column is at 5.0V, 25
°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
Note 1:
In RC oscillator configuration, the OSC1/CLKI pin is a Schmitt Trigger input. It is not recommended to use an
external clock in RC mode.
2:
Negative current is defined as current sourced by the pin.
3:
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.