DS1500WE+ Maxim Integrated Products, DS1500WE+ Datasheet - Page 10

• Manufacturer Part Number: DS1500WE+
• Description: IC RTC Y2KC W/NV CTRL 32-TSOP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/WDT/NVSRAM/Y2Kr

Specifications of DS1500WE+

• Memory Size: 2K (256 x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-TSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 7. Block Diagram
Figure 8. Typical Crystal Layout
LOCAL GROUND PLANE (LAYER 2)
X1
X2
V
GND
V
V
CEI
KS
BAUX
BAT
BAT
CRYSTAL
32.768kHz CLOC K
OSCILLATOR
WRITE PROTECTIO , N
POWER CONTROL
AND POWE
GND
X1
X2
RESET
CLOCK ALARM AND WATCHDOG
R-
ON
COUNTDOWN
10 of 19
CLOCK AND CONTROL
REGISTERS
NV SRAM
256 x 8
16 x 8
Semiconductor
DS1500
Dallas
IRQ
SQW
DQ0–DQ7
PWR
RST
CEO
V
WE
A0–A4
CS
OE
CCO