DS1284QN Maxim Integrated Products, DS1284QN Datasheet - Page 18

• Manufacturer Part Number: DS1284QN
• Description: IC TIMEKEEPER WATCHDG IND 28PLCC
• Manufacturer: Maxim Integrated Products
• Type: Watchdog Timerr

Specifications of DS1284QN

• Memory Size: 50B
• Time Format: HH:MM:SS:hh (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-LCC, 28-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PACKAGE INFORMATION (continued)
Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product.
No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r i v e , S u n n y v a l e , C A 9 4 0 8 6 4 0 8 - 7 3 7 - 7 6 0 0
The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation.
© 2006 Maxim Integrated Products
18 of 18
NOTE: PINS 2, 3, 21, 24, AND 25 ARE MISSING BY DESIGN.
A IN.
B IN.
C IN.
D IN.
G IN.
H IN.
K IN.
E IN.
F IN.
J IN.
PKG
DIM
MM
MM
MM
MM
MM
MM
MM
MM
MM
MM
1.520
38.61
0.695
17.65
0.350
0.100
0.015
0.110
0.090
0.590
14.99
0.008
0.015
MIN
8.89
2.54
0.38
2.79
2.29
0.20
0.38
28-PIN EDIP
1.540
39.12
0.720
18.29
0.375
0.130
0.030
0.140
0.110
0.630
16.00
0.012
0.021
9.52`
MAX
3.30
0.76
3.56
2.79
0.30
0.53
DS1284/DS1286