SP691A/693A/800L/800M
SIGNAL PROCESSING EXCELLENCE
Low Power Microprocessor Supervisory
with Battery Switch-Over
FEATURES
■
Precision 4.65V/4.40V Voltage Monitoring
■
200ms Or Adjustable Reset Time
■
100ms, 1.6s Or Adjustable Watchdog Time
■
60µA Maximum Operating Supply Current
■
2.0µA Maximum Battery Backup Current
■
0.1µA Maximum Battery Standby Current
■
Power Switching
250mA Output in Vcc Mode (0.6Ω)
25mA Output in Battery Mode (5Ω)
■
On-Board Gating of Chip-Enable Signals
Memory Write-Cycle Completion
6ns CE Gate Propagation Delay
■
Voltage Monitor for Power-Fail or Low Battery
■
Backup-Battery Monitor
■
RESET Valid to Vcc=1V
■
1% Accuracy Guaranteed (SP800L/800M)
■
Pin Compatible Upgrade to MAX691A/693A/
800L/800M
V
BATT
V
OUT
Vcc
GND
BATT ON
LOWLINE
OSC
IN
OSC
SEL
1
2
3
4
Corporation
TOP VIEW
16
RESET
15
RESET
14
WDO
13
CE
IN
12
CE
OUT
11
WDI
10
9
5
6
7
8
PFO
PFI
DIP/SO
Now Available in Lead Free Packaging
DESCRIPTION
The
SP691A/693A/800L/800M
is a microprocessor (µP) supervisory circuit that integrates
a myriad of components involved in discrete solutions to monitor power-supply and
battery-control functions in
µP
and digital systems. The
SP691A/693A/800L/800M
offers
complete
µP
monitoring and watchdog functions. The
SP691A/693A/800L/800M
is ideal for
a low-cost battery management solution and is well suited for portable, battery-powered
applications with its supply current of 35µA. The 6ns chip-enable propagation delay,
the 25mA current output in battery-backup mode, and the 250mA current output in
standard operation also makes the
SP691A/693A/800L/800M
suitable for larger scale,
high-performance equipment.
Part Number
SP691A
SP693A
SP800L
SP800M
RESET Threshold
4.65V
4.40V
4.65V
4.40V
RESET Accuracy
+125mV
+125mV
+50mV
+50mV
PFI Accuracy
+4%
+4%
+1%
+1%
Backup-Battery Switch
YES
YES
YES
YES
Date: 5/25/04
SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over © Copyright 2004 Sipex Corporation
1
SIPEX [ SIPEX CORPORATION ]
