Figure 1: Sh3000 Microbuddy™ Block Diagram - Semtech SH3000 User Manual

V+
2
V
BAK
4
Regulators &
Battery Back-up
V
SS
1
V
SS
8
LF Oscillator
X
IN
5
X
OUT
6
CLK
SEL
Select
7
Logic
R
REF
9
SH3000UM version 0.95
Copyright ©2002 Semtech Corporation
Microcontroller
V 32 H
DD K Z
3 13
Clock Driver &
Start/Stop Logic
Post-scaler
HF Oscillator
Voltage
Reference
V
Watchdog
X
TAL
Oscillator
Real Time Clock
Periodic Interrupt
/ Wake-up Timer
RC
Oscillator
SH3000 µBuddy™
Figure 1: SH3000 MicroBuddy™ Block Diagram
2002-08
X X R
IN OUT
16 15
& FLL
Monitor
DD
SH3000 User Manual
Preliminary
I/O
ESET PIN
OTP Memory
Calibration &
Default Settings
RST
11
Reset Drivers
& Logic
RST
N
10
T
EST
Control Logic
12
Interrupt
IO/I
NT
14
Serial I/O
2