ht82m99e Holtek Semiconductor Inc., ht82m99e Datasheet - Page 3

• Manufacturer Part Number: ht82m99e
• Description: Ht82m99e/ht82m99a -- Usb Mouse Encoder 8-bit Mcu
• Manufacturer: Holtek Semiconductor Inc.

Pin Description
Absolute Maximum Ratings
Supply Voltage ...........................V
Input Voltage..............................V
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
Rev. 2.20
PA0~PA6,
PA7/TMR
PB2, PB3
PB4, PB7
VSS
RES
VDD
V33O
USBD+/CLK
USBD-/DATA
OSCI
OSCO
Pin Name
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
I/O
I/O
I/O
I/O
I/O
I/O
O
O
I
I
CMOS/NMOS/PMOS
ROM Code
Wake-up
Wake-up
Pull-high
Pull-high
Pull-high
Pull-low
Pull-low
Option
SS
SS
0.3V to V
0.3V to V
Bidirectional 8-bit input/output port. Each bit can be configured as a
wake-up input by ROM code option. The input or output mode is con-
trolled by PAC (PA control register).
Pull-high resistor options: PA0~PA7
Pull-low resistor options: PA0~PA3
CMOS/NMOS/PMOS options: PA0~PA7
Falling edge wake-up options: PA0~PA1, PA4~PA7
Rising and falling edge wake-up options: PA2~PA3
PA7 is wire-bonded with TMR
Bidirectional 8-bit input/output port. Software instructions determine the
CMOS output or Schmitt trigger input with pull-high resistor (determined
by pull-high options).
Pull-low resistor for options: PB2, PB3
Bidirectional 8-bit input/output port. Software instructions determine the
CMOS output or Schmitt trigger input with pull-high resistor (determined
by pull-high options).
Falling edge wake-up options: PB4, PB7
Negative power supply, ground
Schmitt trigger reset input. Active low.
Positive power supply
3.3V regulator output
USBD+ or PS2 CLK I/O line
USB or PS2 function is controlled by software control register
USBD- or PS2 DATA I/O line
USB or PS2 function is controlled by software control register
OSCI, OSCO are connected to a 6MHz or 12MHz crystal/resonator (de-
termined by software instructions) for the internal system clock.
DD
SS
+6.0V
+0.3V
3
Storage Temperature ............................ 50 C to 125 C
Operating Temperature...............................0 C to 70 C
Description
HT82M99E/HT82M99A
April 16, 2008