The MCP9800/1/2/3 parts you have received conform functionally to the MCP9800/1/2/3 Data Sheet (DS21909B), except for the anomalies described below. All of the issues listed here will be addressed in future revisions of the MCP9800/1/2/3 silicon. Contact Microchip for the latest Silicon fix. PIC16F87X PIC16F87X Rev. B3 Silicon Errata Sheet The PIC16F87X (Rev. B3) parts you have received 4. Module: TMR1 conform functionally to the Device Data Sheet When operating in external clock mode (TMR1CS (DS30292A), except for the anomalies described is set), reading either of the timer 1 registers below. (TMR1H or TMR1L) may cause the timer not to All the problems listed here will be addressed in future increment as expected. This occurs for both syn- revisions of the PIC16F87X silicon. chronous and ……