MEMORY DEVICE HAVING GLOBAL LINE GROUPS WHICH DATA INPUT AND OUTPUT UNITS ARE DIFFERENT FROM EACH OTHER

A memory device includes first, second, third, and fourth memory cell groups and first and second transmitters. The first and second memory cell groups share first local lines. The third and fourth memory cell groups share second local lines. The first transmitter transmits first data to first global lines based on a read command. The first data is output from one of the first memory cell group and the second memory cell group on the first local lines. The second transmitter transmits second data to second global lines based on the read command. The second data is output from one of the thirdmemory cell group and the fourth memory cell group on the second local lines. The number of the first global lines is different from the number of the second global lines. 一种存储设备，包括第一、第二、第三和第四存储单元组以及第一和第二发送器。第一和第二存储单元组共享第一局部线。第三和第四存储单元组共享第二局部线。第一发送器基于读取命令将第一数据发送到第一全局线。第一数据在第一局部线上从第一存储单元组和第二存储单元组中的一个输出。第二发送器基于读取命令将第二数据发送到第二全局线。第二数据在第二局部线上从第三存储单元组和第四存储单元组中的一个输出。第一全局线的数量与第二全局线的数量不同。