XE8801AMI027LF Semtech, XE8801AMI027LF Datasheet - Page 43

• Manufacturer Part Number: XE8801AMI027LF
• Description: IC DAS 16BIT FLASH 8K MTP 44LQFP
• Manufacturer: Semtech

Specifications of XE8801AMI027LF

• Applications: Sensing Machine
• Core Processor: RISC
• Program Memory Type: FLASH (22 kB)
• Controller Series: XE8000
• Ram Size: 512 x 8
• Interface: UART, USRT
• Number Of I /o: 24
• Voltage - Supply: 2.4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• For Use With: XE8000MP - PROG BOARD AND PROSTART2 CARD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© Semtech 2005
OSCIN
EnXtal and
not(ExtClk or EnExtClk)
7-4
5
4
3
2
1
0
7-6
5
4
3
2
1
0
pos.
pos.
RC
External
Clock
Xtal
--
Reserved
RcFreqRange
RcFreqCoarse[3]
RcFreqCoarse[2]
RcFreqCoarse[1]
RcFreqCoarse[0]
--
RcFreqFine[5]
RcFreqFine[4]
RcFreqFine[3]
RcFreqFine[2]
RcFreqFine[1]
RcFreqFine[0]
RegSysRcTrim1
RegSysRcTrim2
CkRc
CkXtal
0
1
RegSysRcTrim1
RegSysRcTrim2
CpuSel
0
1
r
rw
rw
rw
rw
rw
rw
r
rw
rw
rw
rw
rw
rw
Table 7-4: RegSysRCTrim1 register
Table 7-5: RegSysRCTrim2 register
Rw
rw
Figure 7-1. Clock block structure
00
0 resetcold
0 resetcold
0 resetcold
0 resetcold
0 resetcold
0 resetcold
00
1 resetcold
0 resetcold
0 resetcold
0 resetcold
0 resetcold
0 resetcold
High prescaler
reset
reset
7-3
Unused
Reserved
Low/high freq. range (low=0)
RC coarse trim bit 3
RC coarse trim bit 2
RC coarse trim bit 1
RC coarse trim bit 0
Unused
RC fine trim bit 5
RC fine trim bit 4
RC fine trim bit 3
RC fine trim bit 2
RC fine trim bit 1
RC fine trim bit 0
0
1
Low prescaler
Function
function
XE8801A – SX8801R
CkRc/256
32kHz
CkRc
1Hz
CpuCk
to
to
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