MAX1358B Maxim Integrated Products, MAX1358B Datasheet - Page 24

• Manufacturer Part Number: MAX1358B
• Description: Data-Acquisition System
• Manufacturer: Maxim Integrated Products

DataSheet.in
16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
24
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
______________________________________________________________________________________
32KOUT
CLK32K
RESET
NAME
UPIO2
UPIO3
UPIO4
DOUT
32KIN
SNO1
SCM1
SNC1
SNO2
SCM2
SNC2
OUT1
SCLK
IN1+
CLK
IN1-
DIN
INT
CS
Clock Output. Default is 2.457MHz output clock for the µC.
User-Programmable Input/Output 2. See the UPIO2_CTRL Register section for functionality.
User-Programmable Input/Output 3. See the UPIO3_CTRL Register section for functionality.
User-Programmable Input/Output 4. See the UPIO4_CTRL Register section for functionality.
Serial-Data Output. Data is clocked out on SCLK’s falling edge. High impedance when CS is high, when
UPIO/SPI pass-through mode is enabled, DOUT mirrors the state of UPIO1.
Serial-Clock Input. Clocks data in and out of the serial interface.
Serial-Data Input. Data is clocked in on SCLK’s rising edge.
Active-Low Chip-Select Input. Data is not clocked into DIN unless CS is low. When CS is high, DOUT is high
impedance. High impedance when CS is high; when UPIO/SPI pass-through mode is enabled, DOUT
mirrors the state of UPIO1.
Programmable Active-High/Low Interrupt Output. ADC, UPIO wake-up, alarm, and voltage-monitor events.
32kHz Clock Input/Output. Outputs 32kHz clock for the µC. Can be programmed as an input by enabling
the IO32E bit to accept an external 32kHz input clock. The RTC, PWM, and watchdog timer always use the
internal 32kHz clock derived from the 32kHz crystal.
Active-Low, Open-Drain Reset Output. Remains low while DV
stays low for a timeout period (t
when the watchdog timer times out and holds low during POR until the 32kHz oscillator stabilizes.
32kHz Crystal Output. Connect an external 32kHz watch crystal between 32KIN and 32KOUT.
32kHz Crystal Input. Connect an external 32kHz watch crystal between 32KIN and 32KOUT.
Analog Switch 1 Normally Open Terminal. Analog input to mux.
Analog Switch 1 Common Terminal. Analog input to mux.
Analog Switch 1 Normally Closed Terminal. Analog input to mux (open on POR).
Analog Switch 2 Normally Open Terminal. Analog input to mux.
Analog Switch 2 Common Terminal. Analog input to mux (open on POR).
Analog Switch 2 Normally Closed Terminal. Analog input to mux.
Amplifier 1 Output. Analog input to mux.
Amplifier 1 Inverting Input. Analog input to mux.
Amplifier 1 Noninverting Input
DSLP
) after DV
DD
FUNCTION
rises above the 1.8V threshold. RESET also pulses low
DD
is below the 1.8V voltage threshold and
Pin Description