BU21024FV-M_14 Datasheet, PDF (5/20 Pages) Rohm – Resistive Type Touch Screen Controller ICs

BU210243FGVU-LM BU21023MUV BU21024FV-M
Datasheet
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Conditions
Power Supply Voltage
V_DD
-0.3 to +4.5
V
Input Voltage
Power Dissipation
V_IN
-0.3 to V_DD+0.3
V
Pd
0.85 ^{(Note 1)}
W
Storage Temperature Range
Tstg
-50 to +125
°C
(Note 1) Derate by 8.50mW /°C centigrade when ambient temperature exceeds 25°C. Measured using PCB(1 layer) measuring 70x70x1.6mm³.
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions
Parameter
Rating
Symbol
Unit
Min
Typ
Max
Power Supply Voltage
V_DD
2.70
3.00
3.60
V
Conditions
Digital Core Power Supply
DV_DD
1.62
1.80
1.98
V DVDD_EXT=H
Operating Temperature Range
Topr
-40
+25
+85
°C
Note: The BU21024 controllers can be operated with a single 3V V_DD supply.
It is also possible to supply 1.8V DV_DD from an external source if the DVDD_EXT pin is connected to logic high.
Electrical Characteristics (Ta=25°C, V_DD=3.00V)
Parameter
Symbol
Min
Limit
Typ
Unit
Max
Low-Level Input Voltage
V_IL
-0.5
-
0.2xV_DD
V
Conditions
High-Level Input Voltage
V_IH
0.8xV_DD
-
V_DD+0.5
V
Low-Level Output Voltage
V_OL
-
-
0.4
V
High-Level Output Voltage
V_OH
V_DD-0.4
-
-
V
Standby Current
I_ST
-
-
1
µA RSTB=L
Sleep Current1
I_CC1
-
60
100
µA DVDD_EXT =L
Sleep Current2
I_CC2
-
10
20
µA DVDD_EXT =H
Operating Current
I_DD
-
4
6
mA No Load
Oscillation Frequency
Freq
18
20
22
MHz
Resolution
Ad
1024x1024
Bit
Differential Non-Linearity Error
DNL
-3.0
-
+3.0 LSB
Integral Non-Linearity Error
INL
-3.0
-
+3.0 LSB
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TSZ02201-0L5L0F300190-1-2
31.Mar.2014 Rev.003