UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 61

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(2) Internal expansion RAM
3.1.4 Special function register (SFR) area
Table 3-7 Special Function Register List in 3.2.3 Special function registers (SFRs)).
3.1.5 Data memory addressing
the register or memory relevant to the execution of instructions.
78K0/KE2, based on operability and other considerations. For areas containing data memory in particular, special
addressing methods designed for the functions of special function registers (SFR) and general-purpose registers are
available for use. Figures 3-9 to 3-15 show correspondence between data memory and addressing. For details of
each addressing mode, see 3.4 Operand Address Addressing.
On-chip peripheral hardware special function registers (SFRs) are allocated in the area FF00H to FFFFH (see
Caution Do not access addresses to which SFRs are not assigned.
Addressing refers to the method of specifying the address of the instruction to be executed next or the address of
Several addressing modes are provided for addressing the memory relevant to the execution of instructions for the
The internal expansion RAM can also be used as a normal data area similar to the internal high-speed RAM, as
well as a program area in which instructions can be written and executed.
The internal expansion RAM cannot be used as a stack memory.
µ
µ
µ
µ
µ
µ
µ
PD78F0531
PD78F0532
PD78F0533
PD78F0534
PD78F0535
PD78F0536
PD78F0537, 78F0537D
Part Number
Table 3-6. Internal Expansion RAM Capacity
CHAPTER 3 CPU ARCHITECTURE
1024 × 8 bits (F400H to F7FFH)
2048 × 8 bits (F000H to F7FFH)
4096 × 8 bits (E800H to F7FFH)
6144 × 8 bits (E000H to F7FFH)
User’s Manual U17260EJ6V0UD
Internal Expansion RAM
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