DS32C35-33IND# Maxim Integrated Products, DS32C35-33IND# Datasheet - Page 21

• Manufacturer Part Number: DS32C35-33IND#
• Description: IC RTC W/TCXO 20-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/TCXO/Crystal/FRAMr

Specifications of DS32C35-33IND#

• Memory Size: 64K (8K x 8)
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.63 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Function: Clock/Calendar
• Rtc Memory Size: 8192 B
• Supply Voltage (max): 3.63 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: I2C
• Supply Current: 260 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SUBSTRATE CONNECTED TO GROUND
PROCESS: CMOS
TOP VIEW
INT/SQW
32kHz
N.C.
N.C.
N.C.
N.C.
N.C.
V
RST
WP
CC
CPU
V
CC
10
1
2
3
4
5
6
7
8
9
DS32B35/
DS32C35
SO
PUSHBUTTON
Pin Configuration
Chip Information
RESET
R
PU
Accurate I
= t
20
19
18
17
16
15
14
13
12
11
R
/C
____________________________________________________________________
SCL
GND
SCL
SDA
V
GND
N.C.
N.C.
N.C.
N.C.
B
BAT
R
PU
V
CC
R
PU
N.C.
N.C.
N.C.
SCL
SDA
WP
RST
N.C.
N.C.
SCL
2
DS32B35/
DS32C35
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
#Denotes a RoHS-compliant device that may include lead that
is exempt under RoHS requirements. The lead finish is JESD97
category e3, and is compatible with both lead-based and lead-
free soldering processes. A "#" anywhere on the top mark
denotes a RoHS-compliant device.
† An “N” anywhere on the top mark denotes an industrial grade
device.
GND
V
C RTC with Integrated
V
DS32B35-33#
DS32B35-33IND#
DS32C35-33#
DS32C35-33IND#
CC
CC
PACKAGE
20 SO
TYPE
PART
TCXO/Crystal/FRAM
INT/SQW
32kHz
V
GND
N.C.
N.C.
N.C.
N.C.
BAT
Typical Operating Circuit
PACKAGE
W20#H2
CODE
FRAM DENSITY
Package Information
2k x 8
2k x 8
8k x 8
8k x 8
OUTLINE
21-0042
Selector Guide
NO.
PATTERN NO.
DS32B35
DS32B35
DS32C35
DS32C35
MARK
TOP †
90-0108
LAND
21