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Z86L99 Datasheet(PDF) 11 Page - Zilog, Inc. |
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Z86L99 Datasheet(HTML) 11 Page - Zilog, Inc. |
11 / 102 page Z86D990/Z86D991 OTP and Z86L99X ROM Low-Voltage Microcontrollers with ADC PS003807-1002 P R E L I M I N A R Y 4 Functional Block Diagram Figure 1 shows the functional block diagram for the microcontrollers. Figure 1. Functional Block Diagram Register File 256 x 8-bit Z8 Core VDD_padring*** VDD_CORE Program Memory †† 256 Bytes Two Analog Comparators 16-Bit C/T (Modulation) MUX 8-Bit A/D† ADC0/P44 ADC1/P45 ADC2/P46 ADC3/P47 Port 2 Port 6 ** Port 5 Port 4 7 0 7 0 7 0 7 0 Power Filter 8 Expanded Register File 8 8-Bit C/T (General) 8-Bit C/T (Carrier) VRef– VRef+ Machine Timing and Instruction Control XTAL 1 XTAL 2 *Controlled Current Output * Controlled Current Output P43 P53 CREF2 CREF1 P50 P52 CIN2 CIN1 P51 **P6 is only in the Z86L990/Z86D990. †ADC is only in the Z86L990/Z86D990. ††Program memory is as follows: Z86D990 32K OTP Z86D991 32K OTP Z86L990 16K ROM Z86L991 16K ROM ***In the 28-pin package, VDD_padring and VDD_CORE are bonded together. |
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