Peripheral Features
·
From 21 to 56 Bidirectional I/O with Pull-high Options
·
Port A Wake-up Options
·
One or Two External Interrupt Inputs
·
Event Counter Input
·
Full Timer Functions with Prescaler and Interrupt
·
Watchdog Timer (WDT)
·
HALT and Wake-up Feature for Power Saving Operation
·
PFD/Buzzer Driver Outputs
·
On-chip Crystal and RC Oscillator
·
32768Hz Real Time Clock (RTC) Function
·
Universal Asynchronous Receiver Transmitter - UART (HT48RU80/HT48CU80)
·
Low Voltage Reset (LVR) Feature for Brown-out Protection
·
Programming Interface with Code Protection
·
Mask Version Devices Available for High Volume Production
·
Full Suite of Supported Hardware and Software Tools Available
Selection Table
The series of I/O microcontrollers include a comprehensive range of features, some of which are
standard and some of which are device dependent. Most features are common to all devices, the
main features distinguishing them are Program Memory, Data Memory capacity, I/O count, timer
and UART functions. To assist users in their selection of the most appropriate device for their appli
-
cation, the following table, which summarizes the main features of each device, is provided.
Part No. VDD
Program
Memory
Data
Memory
I/O Timer Interrupt UART Stack
Package
Types
HT48R10A-1
HT48C10-1
2.2V~
5.5V
1K´14 64´8
21
8-bit´1
2
¾
4 24SKDIP/SOP
HT48R30A-1
HT48C30-1
2.2V~
5.5V
2K´14 96´8
25
8-bit´1
2
¾
4
24SKDIP/SOP,
28SKDIP/SOP
HT48R50A-1
HT48C50-1
2.2V~
5.5V
4K´15 160´8
35
8-bit´1
16-bit´1
3
¾
6
28SKDIP/SOP,
48SSOP
HT48R70A-1
HT48C70-1
2.2V~
5.5V
8K´16 224´8
56
16-bit´2
3
¾
16
48SSOP,
64QFP
HT48RU80
HT48CU80
2.2V~
5.5V
16K´16 576´8
56
8-bit´1
16-bit´2
6
Ö
16
48SSOP,
64QFP
Note
1. Part numbers including ²C² are mask version devices while ²R² are OTP devices.
2. For devices that exist in two package formats, the table reflects the situation for the larger
package.
Chapter 1 Hardware Structure
5
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