UPD784938 Datasheet, PDF (61/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 2 PIN FUNCTIONS
(24) REGOFF
This pin controls the regulator operation by operating or stopping the regulator.
(25) VPP (µPD78F4938) only
High-voltage apply pin for flash memory programming mode setting and program write/verify
(26) IC
IC test pin. Connect directly to VSS.
Preliminary User’s Manual U13987EJ1V0UM00
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