Datasheet

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ST7LITE20F2 ST7LITE25F2 ST7LITE29F2 Device configuration
169
Note: For further information, see clock management block diagram in Figure 13.
15.2 Device ordering information and transfer of customer code
Customer code is made up of the FASTROM contents and the list of the selected options (if
any).
The FASTROM contents are to be sent on diskette, or by electronic means, with the S19
hexadecimal file generated by the development tool. All unused bytes must be set to FFh.
The selected options are communicated to STMicroelectronics using the correctly
completed Option list appended on Table 98: ST7LITE2 FASTROM microcontroller option
list.
Refer to application note AN1635 for information on the counter listing returned by ST after
code has been transferred.
The STMicroelectronics Sales Organization will be pleased to provide detailed information
on contractual points.
Table 96. List of valid option combinations
Operating conditions Option bits
V
DD
range Clock Source PLL Typ f
CPU
OSC PLLOFF PLLx4x8
2.4V - 3.3V
Internal RC 1%
(1)
1. Configuration available on ST7LITE25 and ST7LITE29 devices only
off 0.7MHz @3V 0 1 1
x4 2.8MHz @3V 0 0 0
x8 −−−−
External clock or oscillator
(depending on OPT6:4
selection)
off 0-4MHz 1 1 1
x4 4MHz 1 0 0
x8 −−−−
3.3V - 5.5V
Internal RC 1%
(1)
off 1MHz @5V 0 1 1
x4 −−−−
x8 8MHz @5V 0 0 1
External clock or oscillator
(depending on OPT6:4
selection)
off 0-8MHz 1 1 1
x4 −−−−
x8 8 MHz 1 0 1