Datasheet

MCP23008/MCP23S08
DS21919E-page 24 © 2007 Microchip Technology Inc.
2.1 DC Characteristics
DC Characteristics
Operating Conditions (unless otherwise indicated):
1.8V ≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +85°C (I-Temp)
4.5V ≤ VDD ≤ 5.5V at -40°C ≤ TA ≤ +125°C (E-Temp) (Note 1)
Param
No.
Characteristic Sym Min Typ Max Units Conditions
D001 Supply Voltage V
DD 1.8 — 5.5 V
D002 V
DD Start Voltage to
Ensure Power-on
Reset
VPOR —VSS —V
D003 V
DD Rise Rate to
Ensure Power-on
Reset
SVDD 0.05 — — V/ms Design guidance only.
Not tested.
D004 Supply Current I
DD — — 1 mA SCL/SCK = 1 MHz
D005 Standby current I
DDS ——1µA
— — 2 µA 4.5V - 5.5V @ +125°C
(Note 1)
Input Low-Voltage
D030 A0, A1 (TTL buffer) V
IL VSS —0.15VDD V
D031 CS
, GPIO, SCL/SCK,
SDA, A2, RESET
(Schmitt Trigger)
V
SS —0.2VDD V
Input High-Voltage
D040 A0, A1
(TTL buffer)
VIH 0.25 VDD + 0.8 — VDD V
D041 CS
, GPIO, SCL/SCK,
SDA, A2, RESET
(Schmitt Trigger)
0.8 V
DD —VDD V For entire VDD range.
Input Leakage Current
D060 I/O port pins IIL ——±1µAVSS ≤ VPIN ≤ VDD
Output Leakage Current
D065 I/O port pins I
LO ——±1µAVSS ≤ VPIN ≤ VDD
D070 GPIO weak pull-up
current
IPU 40 75 115 µA VDD = 5V, GP Pins = VSS
–40°C ≤ TA ≤ +85°C
Output Low-Voltage
D080 GPIO V
OL ——0.6VIOL = 8.5 mA, VDD = 4.5V
INT — — 0.6 V I
OL = 1.6 mA, VDD = 4.5V
SO, SDA — — 0.6 V I
OL = 3.0 mA, VDD = 1.8V
SDA — — 0.8 V I
OL = 3.0 mA, VDD = 4.5V
Output High-Voltage
D090 GPIO, INT, SO V
OH VDD – 0.7 — — V IOH = -3.0 mA, VDD = 4.5V
V
DD – 0.7 — — IOH = -400 µA, VDD = 1.8V
Capacitive Loading Specs on Output Pins
D101 GPIO, SO, INT C
IO ——50pF
D102 SDA C
B — — 400 pF
Note 1: This parameter is characterized, not 100% tested.