HN1232
ABSOLUTE MAXIMUM RATINGS*
Voltage on V
CC
Pin Relative to Ground
–0.5V to +7.0V
Voltage on I/O Relative to Ground
–0.5V to V
CC
+ 0.5V
o
o
Operating Temperature
0 C to 70 C
o
o
Operating Temperature (Industrial Version)
–40 C to +85 C
Storage Temperature
–55
o
C to +125
o
C
o
Soldering Temperature
260 C for 10 seconds
* This is a stress rating only and functional operation of the device at these or any other conditions above those
indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
Supply Voltage
ST and PBRST Input High Level
ST and PBRST Input Low Level
SYMBOL
V
CC
V
IH
V
IL
MIN
4.5
2.0
–0.3
TYP
5.0
MAX
5.5
V
CC
+0.3
+0.8
o
(0 C to 70 C)
UNITS
NOTES
V
V
V
o
o
o
1
1
1
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Input Leakage
Output Current @ 2.4V
Output Current @ 0.4V
Low Level @ RST
Output Voltage @ –500 A
Operating Current
V
CC
Trip Point (TOL = GND)
V
CC
Trip Point (TOL = V
CC
)
SYMBOL
I
IL
I
OH
I
OL
V
OL
V
OH
I
CC
V
CCTP
V
CCTP
4.50
4.25
V
CC
–0.5V
V
CC
–0.1V
0.5
4.62
4.37
MIN
–1.0
–8
8
–10
10
TYP
(0 C to 70 C; Vcc=4.5 to 5.5V)
MAX
UNITS
NOTES
+1.0
A
mA
mA
0.4
2.0
4.74
4.49
V
V
mA
V
V
o
3
5
1
1,7
2
1
1
CAPACITANCE
PARAMETER
Input Capacitance
Output Capacitance
SYMBOL
C
IN
C
OUT
MIN
TYP
MAX
5
7
o
( t
A
= 25 C)
UNITS
NOTES
pF
pF
o
AC ELECTRICAL CHARACTERISTICS
PARAMETER
PBRST = V
IL
PBRST Stable Low to RST and RST
RESET Active Time
ST Pulse Width
V
CC
Slew Rate 4.75V to 4.25V
V
CC
Slew Rate 4.25V to 4.75V
V
CC
Fail Detect to RST and RST
V
CC
Detect to RST and RST Transition
NOTES:
1. All voltages referenced to ground.
2. Measured with outputs open.
3. PBRST is internally pulled up to V
CC
with an internal
impedance of 10K typical.
4. PBRST must be held low for a min. of 20ms to guarantee
a reset.
5.
RST is an open drain output.
地址: 南京市珠江路
88
号，新世界中心
B
座
4004
室, 邮编:210008
ADD.: RM. 4004,
BLOCK B,
NEW WORLD CENTRE,
SYMBOL
t
PB
t
PDLY
t
RST
t
ST
t
F
t
R
t
RPD
t
RPU
CONDITIONS
Figure 3 (Note 4)
Figure 3
(0 C to 70 C; Vcc=5V ± 10%)
MIN
TYP
MAX UNITS
20
20
250
610
1000
ms
ms
ms
ns
s
5
100
250
610
175
1000
s
s
ms
Figure 4 (Note 6, 8)
Figure 5
Figure 6
Figure
5.
V
CC
falling
Figure
6.
V
CC
rising. t
R
= 5 s
20
300
0
6. Must not exceed t
TD
minimum. See Table 1.
7. RST remains within 0.5V of V
CC
on power–down until V
CC
drops below 2.0V. RST remains within 0.5V of GND on
power–down until V
CC
drops below 2.0V.
8.
Watchdog can not be disabled. It must be strobed to avoid
resets.
电话(TEL.):
(86)-25-68853600
NANJING 210008,
CHINA
传真(FAX):
(86)-25-68853600-810
WEB-SITE: WWW.HN-ELEC.COM
NO. 88 ZHUJIANG ROAD,
3
HN [ NANJING HONANO ELECTRONIC CO., LTD. ]
