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TK68HC24P Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 21 page Tekmos – Preliminary TK68HC24 PRU www.Tekmos.com 8/21/99 Port Replacement Unit (PRU) For 6811 – type microprocessors Features • Exact replacement for the Motorola MC68HC24 PRU • Utilizes the Tekmos 6824 Core • Replaces ports B and C of 6811 type microprocessors. • The chip-select function allows multiple TK68HC24s to be used in systems requiring multiple parallel ports. • 3 – 5.5 Volt Operation. • 0 – 5 MHz Operation. • Supports all handshake and I/O modes. • Available in 40 PDIP (P) and 44 PLCC (FN) versions. Description The TK68HC24 is an exact replacement of the Motorola 68HC24. The TK68HC24 is designed to replace the Port B and Port C functions of 6811 – type microprocessors. These functions are lost when the 6811 type microprocessors are operated in the expanded mode. The TK68HC24 has an address re-mapping feature that allows multiple TK68HC24s to be used within a single system. Pinout 40 1 2 3 4 5 6 29 30 31 32 33 34 35 36 37 38 39 41 42 43 44 PC0 PC1 PC2 PC3 PC5 PC6 PC7 VDD NC STRA RESETN AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 NC VSS PC4 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 TK68HC24FN 44 PLCC STRB R/WN E AS MODE CSN 40 29 30 31 32 33 34 35 36 37 38 39 PC0 PC1 PC2 PC3 PC5 PC6 PC7 VDD PB3 PB2 PB1 PB0 STRA RESETN AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 VSS PC4 7 8 9 10 11 12 13 14 15 16 17 IRQN 6 5 4 3 2 1 18 19 20 A14 A12 A13 A15 NC PB7 PB6 PB5 PB4 28 27 26 25 24 23 22 21 |
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