UPD784044(A)的技术资料
• Higher reliability compared to the UPD784044
• Minimum instruction execution time :
160 ns (with 12.5-MHz internal clock) ··· UPD784044(A), 784046(A)
200 ns (with 10-MHz internal clock) ··· UPD784044(A1), (A2),
784046(A1), (A2)
• I/O port : 65 lines
• Timer : 16-bit timer/counter × 2 units
16-bit timer × 3 units
• A/D converter : 10-bit resolution × 16 channels
• Serial interface UART/IOE (3-wire serial I/O) : 2 channels
• Watchdog timer : 1 channel
• Standby function HALT/STOP/IDLE mode
• Supply voltage : VDD = 4.5 to 5.5 V
UPD784044(A)的技术参数：
| Parameter | Symbol | Conditions | Ratings | Unit | |
| Supply voltage | VDD | –0.5 to +7.0 | V | ||
| AVDD | –0.5 to VDD + 0.5 | V | |||
| AVSS | –0.5 to +7.0 | V | |||
| Input voltage | VI | Note 1 | –0.5 to VDD + 0.5 ≤ 7.0 | V | |
| Output voltage | VO | –0.5 to VDD + 0.5 | V | ||
| Low-level output current | IOL | All output pins | 15 | mA | |
| All output pins | 15 | mA | |||
| High-level output current | IOH | All output pins | –10 | mA | |
| Total of all output pins | –100 | mA | |||
| Analog input voltage | VIAN | Note 2 | AVDD > VDD | –0.5 to VDD + 0.5 | V |
| AVDD ≥ VDD | –0.5 to VDD + 0.5 | ||||
| A/D converter reference input voltage |
AVREF | AVDD > VDD | –0.5 to VDD + 0.5 | V | |
| AVDD ≥ VDD | –0.5 to VDD + 0.5 | ||||
| Operating temperature | TA | –40 to +85 | ℃ | ||
| Operating temperature | Tstg | –40 to +85 | ℃ | ||
UPD784044(A)的产品描述：
The UPD784046(A) is a model in the µPD784046 subseries within the 78K/IV series. A stricter quality assurance program applies UPD784046(A) compared to the UPD784046 (standard model). (In terms of NEC’s quality grading, this is a ”special” grade product.)
The UPD784046(A) is provided with many peripheral hardware functions such as ROM, RAM, I/O port, 10-bit resolution A/D converter, timer, serial interface, and interrupt functions, in addition to a high-speed, high-performance CPU.
The UPD784046(A) is under development.
Moreover, a flash memory model, UPD78F4046Note, that can operate on the same supply voltage as the mask ROM model, and many development tools are under development.
Note Use for functional evaluation only.
The functions are described in detail in the following User’s Manuals. Be sure to read these manuals when designing your system.
UPD784046 Subseries User’s Manual - Hardware : U11515E
78K/IV Series User’s Manual - Instruction : U10905E
