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T48C893 Datasheet(PDF) 2 Page - ATMEL Corporation |
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T48C893 Datasheet(HTML) 2 Page - ATMEL Corporation |
2 / 82 page T48C893 Rev. A4, 22-Jan-02 2 (82) T48C893 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 16 VDD BP40/INT3/SC BP53/INT1 BP52/INT1 BP51/INT6 BP50/INT6 OSC1 OSC2 BP60/T3O BP10 VSS BP43/INT3/SD BP42/T2O BP41/VMI/T2I BP23 BP22 BP21 BP20/NTE BP63/T3I BP13 Figure 2. Pinning SSO20 package Table 1 Pin description Name Type Function Alternate Function Pin-No. Reset State VDD Supply voltage ––– 1 NA VSS Circuit ground ––– 20 NA BP10 I/O Bidirectional I/O line of Port 1.0 ––– 10 Input BP13 I/O Bidirectional I/O line of Port 1.3 ––– 11 Input BP20 I/O Bidirectional I/O line of Port 2.0 NTE–test mode enable 13 Input BP21 I/O Bidirectional I/O line of Port 2.1 ––– 14 Input BP22 I/O Bidirectional I/O line of Port 2.2 ––– 15 Input BP23 I/O Bidirectional I/O line of Port 2.3 ––– 16 Input BP40 I/O Bidirectional I/O line of Port 4.0 SC-serial clock or INT3 external interrupt input 2 Input BP41 I/O Bidirectional I/O line of Port 4.1 VMI voltage monitor input or T2I external clock input Timer 2 17 Input BP42 I/O Bidirectional I/O line of Port 4.2 T2O Timer 2 output 18 Input BP43 I/O Bidirectional I/O line of Port 4.3 SD serial data I/O or INT3 exter- nal interrupt input 19 Input BP50 I/O Bidirectional I/O line of Port 5.0 INT6 external interrupt input 6 Input BP51 I/O Bidirectional I/O line of Port 5.1 INT6 external interrupt input 5 Input BP52 I/O Bidirectional I/O line of Port 5.2 INT1 external interrupt input 4 Input BP53 I/O Bidirectional I/O line of Port 5.3 INT1 external interrupt input 3 Input BP60 I/O Bidirectional I/O line of Port 6.0 T3O Timer 3 output 9 Input BP63 I/O Bidirectional I/O line of Port 6.3 T3I Timer 3 input 12 Input OSC1 I Oscillator input 4-MHz crystal input or 32-kHz crystal input or external clock in- put or external trimming resistor input 7 Input OSC2 O Oscillator output 4-MHz crystal output or 32-kHz crystal output or external clock input 8 Input |
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