Samsung S3F84B8 User Manual page 281

S3F84B8_UM_REV 1.00
Table 18-1
Main Chip
Pin Name Pin Name
P2.6
P2.7
RESET/P0.2
V , V
DD SS
NOTE: Vpp Pin Voltage
The Vpp pin on socket board for OTP/MTP writer should be 11V. Therefore, this pin must not be directly
connected to Vpp (12.5V) generated from some OTP/MTP writer. A specific adapter board for S3F84B8 must be
used while using these OTP/MTP writers.
Descriptions of Pins Used to Read/Write the Flash ROM
Pin Number
SDAT 18
SCLK 19
VPP 4
V , V
20,
DD SS
1
During Programming
I/O
I/O Serial data pin.
Specifies the output port while reading and input
port while writing.
I Serial clock pin.
I Power supply pin for Flash ROM Cell Writing.
Using this pin, the MTP can enter into the writing
mode. If 11 V is applied, the MTP enters into the
Tool Program mode.
– Power supply pin for logic circuit.
VDD should be tied to +5.0V during
programming.
18-2
18 FLASH MCU ROM
Function