ST92T141K4M6 STMicroelectronics, ST92T141K4M6 Datasheet - Page 71

• Manufacturer Part Number: ST92T141K4M6
• Description: Microcontrollers (MCU) OTP EPROM 16K SPI
• Manufacturer: STMicroelectronics

Specifications of ST92T141K4M6

• Data Bus Width: 8 bit, 16 bit
• Program Memory Type: EPROM
• Program Memory Size: 16 KB
• Data Ram Size: 512 B
• Interface Type: SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SO-34
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 6 Channel
• Lead Free Status / Rohs Status: No

CLOCK CONTROL REGISTERS (Cont’d)
PLL CONFIGURATION REGISTER (PLLCONF)
R246 - Read/Write
Register Page: 55
Reset Value: xx00 x111
Bit 5:4 = MX[1:0]: PLL Multiplication Factor .
Refer to
multiplier settings.
Bit 2:0 = DX[2:0]: PLL output clock divider factor.
Refer to
settings.
Figure 31. RCCU General Timing
7
-
-
Table 16 Divider Configuration
Table 15 PLL Multiplication Factors
(*) WUIMU
(**) +/- 1 T
MX1 MX0
Multiplier
External
Internal
RESET
INTCLK
request
reset
STOP
clock
clock
Xtal
Xtal
(*)
-
DX2
20478xT
PLL turned on by user
ST92141 - RESET AND CLOCK CONTROL UNIT (RCCU)
DX1
for divider
Xtal
(**)
Exit from RESET
DX0
0
for
Xtal/2
Lock-in
Table 15. PLL Multiplication Factors
Table 16. Divider Configuration
time
PLL
DX2
0
0
0
0
1
1
1
1
MX1
Acknowledged
1
0
1
0
PLL
4 xT
PLL selected by user
STOP
sys
DX1
0
0
1
1
0
0
1
1
start-up
Quartz
MX0
10239*CLOCK2
0
0
1
1
DX0
0
1
0
1
0
1
0
1
Lock-in
(PLL OFF, Reset State)
Xtal/2
PLL
time
PLL CLOCK/1
PLL CLOCK/2
PLL CLOCK/3
PLL CLOCK/4
PLL CLOCK/5
PLL CLOCK/6
PLL CLOCK/7
CLOCK2 x
PLL clock
PLL
Switch to
CLOCK2
CK
14
10
8
6
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