DS1500_11 MAXIM [Maxim Integrated Products], DS1500_11 Datasheet - Page 10
DS1500_11
Manufacturer Part Number
DS1500_11
Description
Y2K Watchdog RTC with Nonvolatile Control
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
1.DS1500_11.pdf
(20 pages)
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 CLOCK
OSCILLATOR
WRITE PROTECTION,
POWER CONTROL
AND POWER-ON
GND
X1
X2
RESET
CLOCK ALARM AND WATCHDOG
COUNTDOWN
10 of 20
CLOCK AND CONTROL
REGISTERS
NV SRAM
256 x 8
16 x 8
DS1500
Maxim
IRQ
SQW
DQ0–DQ7
PWR
CEO
V
RST
WE
CS
OE
A0–A4
CCO
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