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Title: Model 40x Wms: Backplane chip 24c04 on Wms/IGT - repost Post by: cfh on September 22, 2008, 08:47:16 AM reposted from old NLG site...
On the williams dotmation and model 400/401 bankplane board, there's a serial EEPROM 8 pin chip. This is the same chip IGT uses on their "motherboard". it contains game type info, so if you try and swap a new game in to the slot, the game knows. Anyway i highly suggest picking up these chips are they are currently available. i don't know how long that will be the case. When replacing, always use an 8 pin socket. Manufacturer part# 24c04 or 24c04LI (PDIP package) Mouser part# 698-CAT24C04LI-G Price $0.42 Access Time: 900 ns Interface Type: I2C Manufacturer: Catalyst Semiconductor Maximum Clock Frequency: 0.4 MHz Maximum Operating Current: 2 mA Maximum Operating Temperature: 85 C Memory Size: 4 Kbit Minimum Operating Temperature: - 40 C Operating Supply Voltage: 2.5 V or 3.3 V or 5 V Organization: 512 x 8 Package / Case: PDIP Packaging: Tube Product Category: EEPROMs - Serial Supply Voltage (Max): 5.5 V Supply Voltage (Min): 1.8 V |