MAX11800_1010 Datasheet, PDF (10/59 Pages) Maxim Integrated Products – Low-Power, Ultra-Small Resistive Touch-Screen Controllers with I2C/SPI Interface

Low-Power, Ultra-Small Resistive Touch-Screen
Controllers with I²C/SPI Interface
SPI TIMING CHARACTERISTICS
(V_DD = 1.7V to 3.6V, T_A = -40°C to +85°C (MAX11800E and MAX11802E), T_A = -40°C to +105°C (MAX11800G), unless otherwise
noted. Typical values are at T_A = +25°C and V_DD = 3.3V, unless otherwise noted. See Figure 2.)
PARAMETER
CLK Frequency
CLK Period
CLK Pulse-Width High
CLK Pulse-Width Low
CS Low to 1st CLK Rise Setup
CS Low After 0th CLK Rise Hold
SYMBOL
CONDITIONS
MIN
f_CLK
t_CP
40
t_CH
18
t_CL
18
t_CSS0
18
t_CSH0
To prevent a 0th CLK read from being taken
as a 1st read in a free-running application
0
TYP MAX UNITS
25
MHz
ns
ns
ns
ns
ns
To prevent a 17th CLK read from being
CS High to 17th CLK Setup
t_CSS1 recognized by the device in a free-running
18
ns
application
CS High After 16th CLK Falling
Edge Hold
CS Pulse-Width High
DIN to CLK Setup
DIN Hold After CLK
DOUT Transition Valid After CLK
Rise
t_CSH1
t_CSW
t_DS
t_DH
t_DOT
Output transition time
0
ns
18
ns
25
ns
0
ns
25
ns
DOUT Remains Valid After CLK
Rise
DOUT Valid Before CLK Rise
CS Rise to DOUT Disable
CLK Rise to DOUT Enable
t_DOH Output hold time
3
t_DO1
t_DO1 = t_CP - t_DOT
10
t_DOD C_LOAD = 20pF
C_LOAD = 20pF. Minimum = hold time with
t_DOE regard to 8th CLK read. Maximum =
3
transition time with regard to 8th CLK read.
ns
ns
40
ns
25
ns
t_F
SDA
SCL
S
t_R
t_LOW
t_HD;STA
t_SU;DAT
t_HIGH
t_HD;DAT
t_F
t_HD;STA ^tSP
t_SU;STA
Sr
t_BUF
t_SU;STO
P
S
Figure 1. I²C Timing Diagram
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