MC68HC05SR3 Datasheet, PDF (18/96 Pages) Freescale Semiconductor, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcontroller Units

1
• Internal 100KΩ pull-up resistors on IRQ and RESET pins
• Four channel 8-bit Analog to Digital Converter
• Low Voltage Reset
• Available in 40-pin PDIP, 42-pin SDIP and 44-pin QFP packages
1.2
Mask Options
The following mask options are available:
• RC or Crystal Oscillator (see Section 2.2). The default is crystal option.
• Power-On Reset delay — Table 1-1 shows available options. The default value is 4096
cycles.
Table 1-1 Power-On Reset Delay Mask Option
Power-On Reset Delay
(cycles)
256
512
1024
2048
4096
8192
16384
32768
• Power-On Reset Slow mode. If enabled, the device goes into Slow mode directly upon
power-on reset. The bus frequency is 16 times slower than the normal mode. Thus, the
power-on reset delay will also be 16 times longer. The default setting is “Slow mode”
disabled.
Freescale
1-2
GENERAL DESCRIPTION
TPG
MC68HC05SR3