AB1 Silicon Labs

AN171 AB1 PROTOTYPING BOARD USERS GUIDE 1. Summary The AB1 prototyping board provides a 3 x 3.75 prototyping area (0.1 center through-hole) with access to all MCU I/O signals. Access to I/O signals is provided by a 96-pin, high density connector that mates directly to the expan- sion connector of C8051F020-TB, C8051F040-TB, C8051F060-TB, and C8051F120-TB target boards. A 128 kB SRAM is installed on the board which can be connected to the MCU s External Memory Interface by installing a single 2-pin jumper (included). 2. Features 96 pin 3 row connector 128 kB SRAM Part number IDT71V124 SRAM disable jumper J1(open = disabled , closed = enabled ) Duplicate of connector pins for easy access to signals Digital and analog supply and ground rails 3. SRAM Details The IDT71V124SA12PH is a high-speed with 12 nanosecond access and cycle time static SRAM. For more further information on access and cycle times for this SRAM please refer to the IDT71V124 data sheet available at AN171 4. Hardware Setup A compatible target board is connected to the accessory board as shown in Figure 1. AC/DC Adapter Accessory Board Target Board Figure 1. Hardware Setup 2 Rev. 0.3