MAX1234ETI+T Maxim Integrated Products, MAX1234ETI+T Datasheet - Page 19

• Manufacturer Part Number: MAX1234ETI+T
• Description: IC CNTRLR TOUCH 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Resistiver

Specifications of MAX1234ETI+T

• Touch Panel Interface: 4-Wire
• Number Of Inputs/keys: 1, 4 x 4 Keypad
• Resolution (bits): 8, 10, 12 b
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Data Rate/sampling Rate (sps, Bps): 50k
• Voltage Reference: Internal
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Applications: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 3. Register Summary
COMMAND
Note: All other registers are reserved and should always be 0. Power-on reset state is DAC data at midscale (0x0080), all other reg-
0x000B
0x000F
0x0040
0x0041
0x0042
0x004E
0x004F
0x0050
0x0051
WRITE
(HEX)
Controllers Include DAC and Keypad Controller
—
—
—
—
—
—
—
—
—
—
—
—
—
isters are 0.
COMMAND
0x8000
0x8001
0x8002
0x8003
0x8004
0x8005
0x8006
0x8007
0x8008
0x8009
0x800A
0x800B
0x800F
0x8010
0x8011
0x8040
0x8041
0x8042
0x804E
0x804F
0x8050
0x8051
READ
(HEX)
KPColumnMask
GPIO control
ADC control
DAC control
GPIO pullup
KPKeyMask
KEY control
REGISTER
GPIO data
DAC data
KPData1
KPData2
TEMP1
TEMP2
NAME
BAT1
BAT2
AUX1
AUX2
KPD
Z1
Z2
X
Y
______________________________________________________________________________________
P EN STS ADSTS
KEYSTS1 KEYSTS0
K1_15
K2_15
BIT15
GPD7
DAPD
KM15
CM4
K15
PU7
GP7
0
0
0
0
0
0
0
0
0
0
0
±15kV ESD-Protected Touch-Screen
BIT14
GPD6
K1_14
K2_14
KM14
CM3
PU6
GP6
K14
0
0
0
0
0
0
0
0
0
0
0
0
K1_13
K2_13
BIT13
GPD5
DBN2
KM13
A/D3
CM2
K13
PU5
GP5
0
0
0
0
0
0
0
0
0
0
0
0
BIT12
GPD4
K1_12
K2_12
DBN1
KM12
A/D2
CM1
PU4
GP4
K12
0
0
0
0
0
0
0
0
0
0
0
0
B1_11
B2_11
A1_11
A2_11
K1_11
K2_11
BIT11
Z1_11
Z2_11
T1_11
T2_11
GPD3
DBN0
KM11
A/D1
K11
PU3
GP3
X11
Y11
0
0
0
B1_10
B2_10
A1_10
A2_10
K1_10
K2_10
BIT10
Z1_10
Z2_10
T1_10
T2_10
GPD2
KM10
HLD2
A/D0
K10
PU2
GP2
X10
Y10
0
0
0
GPD1
RES1
HLD1
B1_9
B2_9
A1_9
A2_9
K1_9
K2_9
BIT9
Z1_9
Z2_9
T1_9
T2_9
KM9
PU1
GP1
K9
X9
Y9
0
0
0
GPD0
HLD0
RES0
BIT8
Z1_8
Z2_8
B1_8
B2_8
A1_8
A2_8
T1_8
T2_8
K1_8
K2_8
PU0
GP0
KM8
X8
Y8
K8
0
0
0
AVG1
B1_7
B2_7
A1_7
A2_7
K1_7
K2_7
BIT7
Z1_7
Z2_7
T1_7
T2_7
KM7
DA7
OE7
X7
Y7
K7
0
0
0
0
0
AVG0
BIT6
Z1_6
Z2_6
B1_6
B2_6
A1_6
A2_6
T1_6
T2_6
K1_6
K2_6
KM6
DA6
OE6
X6
Y6
K6
0
0
0
0
0
CNR1
BIT5
Z1_5
Z2_5
B1_5
B2_5
A1_5
A2_5
T1_5
T2_5
K1_5
K2_5
DA5
OE5
KM5
X5
Y5
K5
0
0
0
0
0
CNR0
BIT4
Z1_4
Z2_4
B1_4
B2_4
A1_4
A2_4
T1_4
T2_4
K1_4
K2_4
KM4
DA4
OE4
X4
Y4
K4
0
0
0
0
0
BIT3
Z1_3
Z2_3
B1_3
B2_3
A1_3
A2_3
T1_3
T2_3
K1_3
K2_3
DA3
OE3
KM3
ST2
X3
Y3
K3
0
0
0
0
0
B1_2
B2_2
A1_2
A2_2
K1_2
K2_2
BIT2
Z1_2
Z2_2
T1_2
T2_2
KM2
DA2
OE2
ST1
K2
X2
Y2
0
0
0
0
0
BIT1
Z1_1
Z2_1
B1_1
B2_1
A1_1
A2_1
T1_1
T2_1
K1_1
K2_1
KM1
DA1
OE1
ST0
X1
Y1
K1
0
0
0
0
0
BIT0
Z1_0
Z2_0
B1_0
B2_0
A1_0
A2_0
T1_0
T2_0
K1_0
K2_0
KM0
DA0
RFV
OE0
X0
Y0
K0
0
0
0
0
0
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