maxq1004 Maxim Integrated Products, Inc., maxq1004 Datasheet - Page 8

• Manufacturer Part Number: maxq1004
• Description: 1-wire And Spi Authentication Microcontroller
• Manufacturer: Maxim Integrated Products, Inc.

1-Wire and SPI Authentication Microcontroller
8
PIN
11
12
13
14
15
16
—
1
AVREF
REG18
NAME
AVDD
GND
AN0
V
RST
EP
DD
Analog Input 0. This pin is the analog input to the ADC.
Analog Voltage Reference. Do not connect anything external to this pin.
Analog Supply Voltage. Directly connect AVDD to DVDD.
Digital Ground
Regulator Capacitor. This pin must be connected to ground through an external 1FF low ESR
(< 5I) capacitor.
Digital Supply Voltage. +3.3V nominal supply voltage.
Exposed Pad. Connect the EP to the ground plane.
Active-Low Reset. This bidirectional pin recognizes external active-low reset inputs and
employs an internal pullup resistor to allow for a combination of wired-OR external reset
sources. This pin also acts as an output when the source of the reset is internal to the device
reset state, and it returns high as the processor exits this state.
(e.g., watchdog timer, power-fail, etc.). In this case, the pin is low while the processor is in a
TOP VIEW
REG18
AVDD
GND
V
DD
13
14
15
16
RESET AND STATUS PINS
+
12
1
POWER PINS
(4mm × 4mm)
MAXQ1004
11
2
TQFN
10
3
EP
9
4
FUNCTION
8
7
6
5
P0.5/INT5/TDI/T0G
P0.4/INT4/TCK/T0
P0.3/INT3/SSEL
P0.2/INT2/SCLK
Pin Configuration
Pin Description