kollade på en sak som hadde st62t10
och såg följande i databladet
- No Readout protection
innebär det att det går att läsa programkoden ur den och bränna den på en likadan?
det finns några trasiga moduler som har var sin 62t10 och det finns möjlighet att läsa en hel sådan
- No Readout protection ?
blev konfunderad
klistar in hela stycket
ST62T10, T15, T20, T25, E20 and E25,
OTP/EPROMDESCRIPTION
The ST62E20 EPROM device emulates the
ST6210B and ST6220B ROM devices. The
ST62E25 EPROM device emulates the ST6215B
and ST6225BROM devices.
Care must be taken when emulating the 2K ROM
devices to start the program at the correct address
(see Memory Map for 2K Devices)
EPROM parts are programmed using any programming
equipment supporting it and validated
by SGS-THOMSON. Once erased, the device can
be reprogrammed.
The ST62T10, T15, T20, T25 OTP devices are the
counterparts of the ST6210B,15B,20B,25BROM
devices. OTP (One Time Programmable) parts are
low cost devices which have to be programmed
like EPROM devices. Unlike EPROM devices,
OTPs cannot be erased once programmed.
Froma user point of view, once programmed, these
OTPandEPROMproducts have the samesoftware
and hardware features as the ROM ST621XB/2XB
versions, except :
- No internal pull-up resistor availableon pin NMI
- No internal pull-up resistor availableon pin TIMER
- NoRCnetwork
- No Oscillator SafeGuard (OSG)
- No ExternalSTOP Mode Control
- No Readout protection
Other than these exceptions, ST62T10, T15, T20,
T25 and ST62E20, E25 are fully compatible with
the ST6210B, 15B, 20B, 25B equivalents, this
datasheet thus provides only information specific
to the EPROMbased devices.
klistar in hela stycket
ST62T10, T15, T20, T25, E20 and E25,
OTP/EPROMDESCRIPTION
The ST62E20 EPROM device emulates the
ST6210B and ST6220B ROM devices. The
ST62E25 EPROM device emulates the ST6215B
and ST6225BROM devices.
Care must be taken when emulating the 2K ROM
devices to start the program at the correct address
(see Memory Map for 2K Devices)
EPROM parts are programmed using any programming
equipment supporting it and validated
by SGS-THOMSON. Once erased, the device can
be reprogrammed.
The ST62T10, T15, T20, T25 OTP devices are the
counterparts of the ST6210B,15B,20B,25BROM
devices. OTP (One Time Programmable) parts are
low cost devices which have to be programmed
like EPROM devices. Unlike EPROM devices,
OTPs cannot be erased once programmed.
Froma user point of view, once programmed, these
OTPandEPROMproducts have the samesoftware
and hardware features as the ROM ST621XB/2XB
versions, except :
- No internal pull-up resistor availableon pin NMI
- No internal pull-up resistor availableon pin TIMER
- NoRCnetwork
- No Oscillator SafeGuard (OSG)
- No ExternalSTOP Mode Control
- No Readout protection
Other than these exceptions, ST62T10, T15, T20,
T25 and ST62E20, E25 are fully compatible with
the ST6210B, 15B, 20B, 25B equivalents, this
datasheet thus provides only information specific
to the EPROMbased devices.
