st2608b Sitronix Technology Corporation, st2608b Datasheet - Page 33

• Manufacturer Part Number: st2608b
• Description: 8-bit Integrated Microcontroller
• Manufacturer: Sitronix Technology Corporation

Since users may use external memory bus to access external ROM, FLASH, or LCD driver, we draw this manual to tell the
details and notice when using external bus by ST2600B in two mode: (1)Stand alone mode (2) ICE-mode
(1) When using ST2600B Stand alone mode:
(2) When using ST2600B ICE mode:
< Pull-up resistance of D0~D7 for current issue when using ST75xx >
Description: When entering sleep mode, D0~D7 of ST75xx will be floating, and make current consumption (about 120uA). It
External memory bus can be output directly by ST2600B DVB (PCB-300) J22 pin-1 to pin-32
Because external data can be controlled by PC through ST-ICE, so the external bus will be shared with ICE connector
pins (PCB-300 - J15)
(a) Please first amount 74hc32 on U11 and U12.
(b) PCB-300 J15 pins allocation as following:
(c) ST2600B DVB should be connected to ST-ICE by J15, and also be connected to external bus by above
can be solved by adding 8 1M-ohm resistance on D0~D7.
table
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ST2608B