Datasheet

 2003 Microchip Technology Inc. DS11195C-page 5
MCP41XXX/42XXX
Absolute Maximum Ratings †
V
DD
...................................................................................7.0V
All inputs and outputs w.r.t. V
SS
............... -0.6V to V
DD
+1.0V
Storage temperature .....................................-60°C to +150°C
Ambient temp. with power applied ................-60°C to +125°C
ESD protection on all pins ..................................................≥ 2kV
† Notice:
Stresses above those listed under “maximum rat-
ings” may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
AC TIMING CHARACTERISTICS
Electrical Characteristics: Unless otherwise indicated, V
DD
= +2.7V to 5.5V, T
A
= -40°C to +85°C.
Parameter Sym Min. Typ. Max. Units Conditions
Clock Frequency F
CLK
——10MHzV
DD
= 5V (Note 1)
Clock High Time t
HI
40 — — ns
Clock Low Time t
LO
40 — — ns
CS
Fall to First Rising CLK Edge t
CSSR
40 — — ns
Data Input Setup Time t
SU
40 — — ns
Data Input Hold Time t
HD
10 — — ns
SCK Fall to SO Valid Propagation Delay t
DO
—80 nsC
L
= 30 pF (Note 2)
SCK Rise to CS
Rise Hold Time t
CHS
30 — — ns
SCK Rise to CS
Fall Delay t
CS0
10 — — ns
CS
Rise to CLK Rise Hold t
CS1
100 — — ns
CS
High Time t
CSH
40 — — ns
Reset Pulse Width t
RS
150 — — ns Note 2
RS
Rising to CS Falling Delay Time t
RSCS
150 — — ns Note 2
CS
rising to RS or SHDN falling delay time t
SE
40 — — ns Note 3
CS
low time t
CSL
100 — — ns Note 3
Shutdown Pulse Width t
SH
150 — — ns Note 3
Note 1: When using the device in the daisy-chain configuration, maximum clock frequency is determined by a combination of propagation delay
time (t
DO
) and data input setup time (t
SU
). Max. clock frequency is therefore ~ 5.8 MHz based on SCK rise and fall times of 5 ns, t
HI
=
40 ns, t
DO
= 80 ns and t
SU
= 40 ns.
2: Applies only to the MCP42XXX devices.
3: Applies only when using hardware pins to exit software shutdown mode, MCP42XXX only.