DS1500WE Просмотр технического описания (PDF) - Maxim Integrated
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DS1500WE Datasheet PDF : 19 Pages
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Figure 7. Block Diagram
DS1500 Y2KC Watchdog RTC with Nonvolatile Control
IRQ
SQW
X1
32.768kHz CLOCK
OSCILLATOR
X2
CLOCK ALARM AND WATCHDOG
COUNTDOWN
16 x 8
CLOCK AND CONTROL
REGISTERS
VBAT
VBAT
VBAUX
GND
KS
CEI
POWER CONTROL
WRITE PROTECTION,
AND POWER-ON
RESET
Figure 8. Typical Crystal Layout
LOCAL GROUND PLANE (LAYER 2)
X1
CRYSTAL
X2
256 x 8
NV SRAM
A0–A4
DQ0–DQ7
CS
WE
OE
Dallas
Semiconductor
DS1500
VCCO
RST
PWR
CEO
GND
10 of 19
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