LTC1286CS8#PBF Linear Technology, LTC1286CS8#PBF Datasheet - Page 21

• Manufacturer Part Number: LTC1286CS8#PBF
• Description: IC A/D CONV SAMPLING 12BIT 8SOIC
• Manufacturer: Linear Technology

Specifications of LTC1286CS8#PBF

• Number Of Bits: 12
• Sampling Rate (per Second): 12.5k
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 1.25mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TRANSMIT
RECEIVED
LABEL MNEMONIC
LOOP
TYPICAL APPLICATIONS
WORD
WORD
D
MPU
MPU
CLK
OUT
CS
D
IN
LDAA
STAA
LDAA
STAA
LDAA
STAA
LDAA
STAA
LDAA
STAA
LDX
BCLR
LDAA
STAA
LDAA
0
?
0
?
#62
#63
0
?
OPERAND
#$50
$1028
#$1B
$1009
#$01
$50
#$A0
$51
#$00
$52
#$1000
$08,X,#$01 D0 GOES LOW (CS GOES LOW)
$50
$102A
$1029
MSB
D OUT FROM LTC1298 STORED IN MC68HC11 RAM
B7
0
0
?
BYTE 1
BYTE 1
B6
0
0
?
B5
0
0
?
COMMENTS
CONFIGURATION DATA FOR SPCR
LOAD DATA INTO SPCR ($1028)
CONFIG. DATA FOR PORT D DDR
LOAD DATA INTO PORT D DDR
LOAD DIN WORD INTO ACC A
LOAD DIN DATA INTO $50
LOAD DIN WORD INTO ACC A
LOAD DIN DATA INTO $51
LOAD DUMMY DIN WORD INTO
ACC A
LOAD DUMMY DIN DATA INTO $52
LOAD INDEX REGISTER X WITH
$1000
LOAD DIN INTO ACC A FROM $50
LOAD DIN INTO SPI, START SCK
CHECK SPI STATUS REG
LSB
0
?
B4
0
START
U
Hardware and Software Interface to the MC68HC11
1
B11
?
B3
Timing Diagram for Interface to the MC68HC11
N
B10
SGL/
DIFF
B2
SGL/
DIFF
?
B9
B1
ODD/
SIGN
ODD/
SIGN MSBF
?
B8
B0
MSBF
?
BYTE 1
BYTE 2
X
0
BYTE 2
BYTE 2
B11
B11
LABEL MNEMONIC
WAIT1 BPL
WAIT2 LDAA
WAIT3 LDAA
X
ANALOG
INPUTS
B10
B10
X
LDAA
STAA
BPL
LDAA
STAA
LDAA
STAA
BPL
BSET
LDAA
STAA
JMP
B9
B9
X
B8
B8
X
CH0
CH1
LTC1298
B7
OPERAND
WAIT1
$51
$102A
$1029
WAIT2
$102A
$62
$52
$102A
$1029
WAIT3
$08,X#$01
$102A
$63
LOOP
D
B7
X
CLK
OUT
D
CS
IN
DON'T CARE
B6
B6
X
LTC1286/LTC1298
B5
B5
COMMENTS
X
CHECK IF TRANSFER IS DONE
LOAD DIN INTO ACC A FROM $51
LOAD DIN INTO SPI, START SCK
CHECK SPI STATUS REG
CHECK IF TRANSFER IS DONE
LOAD LTC1291 MSBs INTO ACC A
STORE MSBs IN $62
LOAD DUMMY INTO ACC A
FROM $52
LOAD DUMMY DIN INTO SPI,
START SCK
CHECK SPI STATUS REG
CHECK IF TRANSFER IS DONE
DO GOES HIGH (CS GOES HIGH)
LOAD LTC1291 LSBs IN ACC
STORE LSBs IN $63
START NEXT CONVERSION
BYTE 3 (DUMMY)
B4
B4
X
BYTE 3
SCK
MISO
MOSI
D0
B3
B3
X
MC68HC11
LTC1286/98 AI07
B2
B2
X
B1
B1
X
B0
B0
X
21
LTC1286/98 AI06