Specifications

28 Élan™SC310 Microcontroller Data Sheet
PRELIMINARY
Notes:
1.
IORESET
(pin #140) requires an external pulldown resistor (~100K).
2. Reset State Local Bus signal and Reset State ISA Max signal: 920 mV–0 V frequency = 32 kHz.
3. Reset State signal: 1.68 V–0 V frequency = 32 kHz.
4. LS in the Clock Off column stands for Last State.
Table 9. Miscellaneous Interface
Signal Name Pin No.
I/O
Type
Term
Drive
Type
Clock
Off
Reset State
(volts)
VCCIO
VCC
Clamp
Spec.
Load
(pF)
Local
Bus
Max
ISA
IORESET
1
140 I ——0.00.0VCC5VCC5
X32IN
2
201 I 920/0 920/0 AVCC AVCC
X32OUT
3
202 O osc. Active 1.68/0 1.68/0 AVCC AVCC
LF1 204 A 1.52 1.52 AVCC AVCC
LF2 205 A 1.48 1.48 AVCC AVCC
LF3 206 A 1.52 1.52 AVCC AVCC
LF4 207 A — 1.68 1.68 AVCC AVCC
X1OUT [BAUD_OUT] 200 O B
(LS)
(4)
1.24 1.24 VCC1 VCC5 50
RESIN
141 STI 0.0 0.0 VCC VCC
SPKR
4
139 O B
(LS)
(4)
5.0 5.0 VCC5 VCC5 50
JTAGEN 199 I PD 0.0 0.0 VCC1 VCC5
RSVD 129 VCC5 VCC5
RSVD 130 VCC5 VCC5
RSVD 131 VCC5 VCC5
RSVD 132 VCC5 VCC5
RSVD 133 VCC5 VCC5
PULLUP 110 VCC5 VCC5
PULLUP 111 VCC5 VCC5
PULLUP 112 VCC5 VCC5
PULLUP 113 VCC5 VCC5
PULLUP 114 VCC5 VCC5
PULLUP 115 VCC5 VCC5
RSVD 122 VCC5 VCC5
RSVD 123 VCC5 VCC5
RSVD 124 VCC5 VCC5
RSVD 125 VCC5 VCC5
RSVD 126 VCC5 VCC5
RSVD 127 VCC5 VCC5
PULLUP 116 VCC5 VCC5
PULLUP 117 VCC5 VCC5
PULLUP 118 VCC5 VCC5
PULLUP 119 VCC5 VCC5
PULLUP 120 VCC5 VCC5
RSVD 134 VCC5 VCC5
RSVD 136 VCC5 VCC5